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55047552 = 273720479
BaseRepresentation
bin1101000111111…
…1010110000000
310211120201001020
43101333112000
5103043010202
65243505440
71235616330
oct321772600
9124521036
1055047552
112908904a
1216528280
13b534a21
14744d0c0
154c755bc
hex347f580

55047552 has 64 divisors (see below), whose sum is σ = 167116800. Its totient is φ = 15727104.

The previous prime is 55047529. The next prime is 55047557. The reversal of 55047552 is 25574055.

55047552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55047557) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7552 + ... + 12927.

It is an arithmetic number, because the mean of its divisors is an integer number (2611200).

Almost surely, 255047552 is an apocalyptic number.

It is an amenable number.

55047552 is an abundant number, since it is smaller than the sum of its proper divisors (112069248).

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

55047552 is a wasteful number, since it uses less digits than its factorization.

55047552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20503 (or 20491 counting only the distinct ones).

The product of its (nonzero) digits is 35000, while the sum is 33.

The square root of 55047552 is about 7419.4037496284. The cubic root of 55047552 is about 380.4048132907.

The spelling of 55047552 in words is "fifty-five million, forty-seven thousand, five hundred fifty-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 128 168 192 224 336 384 448 672 896 1344 2688 20479 40958 61437 81916 122874 143353 163832 245748 286706 327664 430059 491496 573412 655328 860118 982992 1146824 1310656 1720236 1965984 2293648 2621312 3440472 3931968 4587296 6880944 7863936 9174592 13761888 18349184 27523776 55047552