56523147 has 16 divisors (see below), whose sum is σ = 79950240. Its totient is φ = 35397632.

The previous prime is 56523101. The next prime is 56523163. The reversal of 56523147 is 74132565.

It is a cyclic number.

It is not a de Polignac number, because 56523147 - 2¹⁸ = 56261003 is a prime.

It is a super-2 number, since 2×56523147² = 6389732293567218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56523547) 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, 46783 + ... + 47975.

It is an arithmetic number, because the mean of its divisors is an integer number (4996890).

Almost surely, 2^56523147 is an apocalyptic number.

56523147 is a deficient number, since it is larger than the sum of its proper divisors (23427093).

56523147 is a wasteful number, since it uses less digits than its factorization.

56523147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2142.

The product of its digits is 25200, while the sum is 33.

The square root of 56523147 is about 7518.1877470571. The cubic root of 56523147 is about 383.7739079772.

The spelling of 56523147 in words is "fifty-six million, five hundred twenty-three thousand, one hundred forty-seven".