56527815 has 24 divisors (see below), whose sum is σ = 93691728. Its totient is φ = 29102080.

The previous prime is 56527811. The next prime is 56527829. The reversal of 56527815 is 51872565.

It is not a de Polignac number, because 56527815 - 2² = 56527811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56527811) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10375 + ... + 14855.

It is an arithmetic number, because the mean of its divisors is an integer number (3903822).

Almost surely, 2^56527815 is an apocalyptic number.

56527815 is a deficient number, since it is larger than the sum of its proper divisors (37163913).

56527815 is a wasteful number, since it uses less digits than its factorization.

56527815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4547 (or 4518 counting only the distinct ones).

The product of its digits is 84000, while the sum is 39.

The square root of 56527815 is about 7518.4981878032. The cubic root of 56527815 is about 383.7844724238.

The spelling of 56527815 in words is "fifty-six million, five hundred twenty-seven thousand, eight hundred fifteen".