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55653948 = 22327269821
BaseRepresentation
bin1101010001001…
…1011000111100
310212201111212100
43110103120330
5103221411243
65304505100
71244023260
oct324233074
9125644770
1055653948
11294626a9
121677b190
13b6b7a3c
14756a0a0
154d450d3
hex351363c

55653948 has 72 divisors (see below), whose sum is σ = 161572320. Its totient is φ = 15822720.

The previous prime is 55653893. The next prime is 55653967. The reversal of 55653948 is 84935655.

55653948 is a `hidden beast` number, since 556 + 5 + 3 + 94 + 8 = 666.

55653948 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67378 + ... + 68198.

It is an arithmetic number, because the mean of its divisors is an integer number (2244060).

Almost surely, 255653948 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55653948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80786160).

55653948 is an abundant number, since it is smaller than the sum of its proper divisors (105918372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55653948 is a wasteful number, since it uses less digits than its factorization.

55653948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107 (or 1102 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The square root of 55653948 is about 7460.1573709943. The cubic root of 55653948 is about 381.7965437954.

The spelling of 55653948 in words is "fifty-five million, six hundred fifty-three thousand, nine hundred forty-eight".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 269 538 807 821 1076 1614 1642 1883 2421 2463 3228 3284 3766 4842 4926 5649 5747 7389 7532 9684 9852 11298 11494 14778 16947 17241 22596 22988 29556 33894 34482 51723 67788 68964 103446 206892 220849 441698 662547 883396 1325094 1545943 1987641 2650188 3091886 3975282 4637829 6183772 7950564 9275658 13913487 18551316 27826974 55653948