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55651252 = 2231743889
BaseRepresentation
bin1101010001001…
…0101110110100
310212201101011111
43110102232310
5103221320002
65304444404
71244012356
oct324225664
9125641144
1055651252
1129460678
1216779704
13b6b6747
1475690d6
154d443d7
hex3512bb4

55651252 has 12 divisors (see below), whose sum is σ = 97699140. Its totient is φ = 27737216.

The previous prime is 55651249. The next prime is 55651259. The reversal of 55651252 is 25215655.

55651252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 27815076 + 27836176 = 5274^2 + 5276^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55651259) 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 3 ways as a sum of consecutive naturals, for example, 20677 + ... + 23212.

It is an arithmetic number, because the mean of its divisors is an integer number (8141595).

Almost surely, 255651252 is an apocalyptic number.

It is an amenable number.

55651252 is a deficient number, since it is larger than the sum of its proper divisors (42047888).

55651252 is a wasteful number, since it uses less digits than its factorization.

55651252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44210 (or 44208 counting only the distinct ones).

The product of its digits is 15000, while the sum is 31.

The square root of 55651252 is about 7459.9766755668. The cubic root of 55651252 is about 381.7903786736.

The spelling of 55651252 in words is "fifty-five million, six hundred fifty-one thousand, two hundred fifty-two".

Divisors: 1 2 4 317 634 1268 43889 87778 175556 13912813 27825626 55651252