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56625887 = 66185667
BaseRepresentation
bin1101100000000…
…0101011011111
310221112220010002
43120000223133
5103444012022
65341404515
71255212023
oct330005337
9127486102
1056625887
1129a6695a
1216b6973b
13b968256
147740383
154e88092
hex3600adf

56625887 has 4 divisors (see below), whose sum is σ = 56712216. Its totient is φ = 56539560.

The previous prime is 56625853. The next prime is 56625901. The reversal of 56625887 is 78852665.

56625887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56625887 - 26 = 56625823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56625817) 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, 42173 + ... + 43494.

It is an arithmetic number, because the mean of its divisors is an integer number (14178054).

Almost surely, 256625887 is an apocalyptic number.

56625887 is a deficient number, since it is larger than the sum of its proper divisors (86329).

56625887 is an equidigital number, since it uses as much as digits as its factorization.

56625887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86328.

The product of its digits is 806400, while the sum is 47.

The square root of 56625887 is about 7525.0174086177. The cubic root of 56625887 is about 384.0062910392.

The spelling of 56625887 in words is "fifty-six million, six hundred twenty-five thousand, eight hundred eighty-seven".

Divisors: 1 661 85667 56625887