56515255 has 16 divisors (see below), whose sum is σ = 71409600. Its totient is φ = 42853888.

The previous prime is 56515247. The next prime is 56515273. The reversal of 56515255 is 55251565.

It is a cyclic number.

It is not a de Polignac number, because 56515255 - 2³ = 56515247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56515255.

It is a congruent 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, 10821 + ... + 15169.

It is an arithmetic number, because the mean of its divisors is an integer number (4463100).

Almost surely, 2^56515255 is an apocalyptic number.

56515255 is a deficient number, since it is larger than the sum of its proper divisors (14894345).

56515255 is a wasteful number, since it uses less digits than its factorization.

56515255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4490.

The product of its digits is 37500, while the sum is 34.

The square root of 56515255 is about 7517.6628682058. The cubic root of 56515255 is about 383.7560457691.

The spelling of 56515255 in words is "fifty-six million, five hundred fifteen thousand, two hundred fifty-five".