56615755 has 16 divisors (see below), whose sum is σ = 78741504. Its totient is φ = 38273760.

The previous prime is 56615723. The next prime is 56615761. The reversal of 56615755 is 55751665.

It is not a de Polignac number, because 56615755 - 2⁵ = 56615723 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8907 + ... + 13876.

It is an arithmetic number, because the mean of its divisors is an integer number (4921344).

Almost surely, 2^56615755 is an apocalyptic number.

56615755 is a deficient number, since it is larger than the sum of its proper divisors (22125749).

56615755 is a wasteful number, since it uses less digits than its factorization.

56615755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22866.

The product of its digits is 157500, while the sum is 40.

The square root of 56615755 is about 7524.3441574665. The cubic root of 56615755 is about 383.9833864159.

The spelling of 56615755 in words is "fifty-six million, six hundred fifteen thousand, seven hundred fifty-five".