56562818 has 16 divisors (see below), whose sum is σ = 94522680. Its totient is φ = 25205376.

The previous prime is 56562811. The next prime is 56562823. The reversal of 56562818 is 81826565.

It can be written as a sum of positive squares in 4 ways, for example, as 32228329 + 24334489 = 5677^2 + 4933^2 .

It is a super-2 number, since 2×56562818² = 6398704760202248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56562811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36755 + ... + 38262.

Almost surely, 2^56562818 is an apocalyptic number.

56562818 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

56562818 is a deficient number, since it is larger than the sum of its proper divisors (37959862).

56562818 is a wasteful number, since it uses less digits than its factorization.

56562818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75061.

The product of its digits is 115200, while the sum is 41.

The square root of 56562818 is about 7520.8256195713. The cubic root of 56562818 is about 383.8636714049.

The spelling of 56562818 in words is "fifty-six million, five hundred sixty-two thousand, eight hundred eighteen".