56156505 has 24 divisors (see below), whose sum is σ = 90996096. Its totient is φ = 29572800.

The previous prime is 56156459. The next prime is 56156563. The reversal of 56156505 is 50565165.

56156505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56156505 - 2⁹ = 56155993 is a prime.

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, 152832 + ... + 153198.

It is an arithmetic number, because the mean of its divisors is an integer number (3791504).

Almost surely, 2^56156505 is an apocalyptic number.

It is an amenable number.

56156505 is a deficient number, since it is larger than the sum of its proper divisors (34839591).

56156505 is a wasteful number, since it uses less digits than its factorization.

56156505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 33.

The square root of 56156505 is about 7493.7644078260. The cubic root of 56156505 is about 382.9423137310.

The spelling of 56156505 in words is "fifty-six million, one hundred fifty-six thousand, five hundred five".