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56641225 = 523596311
BaseRepresentation
bin1101100000010…
…0011011001001
310221120200011011
43120010123021
5104000004400
65342003521
71255304524
oct330043311
9127520134
1056641225
1129a77433
1216b765a1
13b972224
147745bbb
154e8c8ba
hex36046c9

56641225 has 12 divisors (see below), whose sum is σ = 70441920. Its totient is φ = 45179600.

The previous prime is 56641219. The next prime is 56641253. The reversal of 56641225 is 52214665.

It is not a de Polignac number, because 56641225 - 221 = 54544073 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5820 + ... + 12130.

It is an arithmetic number, because the mean of its divisors is an integer number (5870160).

Almost surely, 256641225 is an apocalyptic number.

It is an amenable number.

56641225 is a deficient number, since it is larger than the sum of its proper divisors (13800695).

56641225 is a wasteful number, since it uses less digits than its factorization.

56641225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6680 (or 6675 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 56641225 is about 7526.0364734699. The cubic root of 56641225 is about 384.0409592630.

It can be divided in two parts, 5664 and 1225, that added together give a square (6889 = 832).

The spelling of 56641225 in words is "fifty-six million, six hundred forty-one thousand, two hundred twenty-five".

Divisors: 1 5 25 359 1795 6311 8975 31555 157775 2265649 11328245 56641225