56315251 has 16 divisors (see below), whose sum is σ = 60318720. Its totient is φ = 52486560.

The previous prime is 56315243. The next prime is 56315269. The reversal of 56315251 is 15251365.

It is a cyclic number.

It is not a de Polignac number, because 56315251 - 2³ = 56315243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56310251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110385 + ... + 110893.

It is an arithmetic number, because the mean of its divisors is an integer number (3769920).

Almost surely, 2^56315251 is an apocalyptic number.

56315251 is a deficient number, since it is larger than the sum of its proper divisors (4003469).

56315251 is a wasteful number, since it uses less digits than its factorization.

56315251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666.

The product of its digits is 4500, while the sum is 28.

The square root of 56315251 is about 7504.3488058592. The cubic root of 56315251 is about 383.3028143735.

The spelling of 56315251 in words is "fifty-six million, three hundred fifteen thousand, two hundred fifty-one".