56523015 has 36 divisors (see below), whose sum is σ = 101795304. Its totient is φ = 30128112.

The previous prime is 56523007. The next prime is 56523017. The reversal of 56523015 is 51032565.

56523015 is a `hidden beast` number, since 5 + 652 + 3 + 0 + 1 + 5 = 666.

It is not a de Polignac number, because 56523015 - 2³ = 56523007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 56523015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56523017) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 31944 + ... + 33666.

Almost surely, 2^56523015 is an apocalyptic number.

56523015 is a deficient number, since it is larger than the sum of its proper divisors (45272289).

56523015 is an frugal number, since it uses more digits than its factorization.

56523015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1752 (or 1731 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 56523015 is about 7518.1789683407. The cubic root of 56523015 is about 383.7736092312.

The spelling of 56523015 in words is "fifty-six million, five hundred twenty-three thousand, fifteen".