56624427 has 20 divisors (see below), whose sum is σ = 89041480. Its totient is φ = 35761824.

The previous prime is 56624423. The next prime is 56624441. The reversal of 56624427 is 72442665.

56624427 is a `hidden beast` number, since 5 + 6 + 624 + 4 + 27 = 666.

It is not a de Polignac number, because 56624427 - 2² = 56624423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56624391 and 56624400.

It is not an unprimeable number, because it can be changed into a prime (56624423) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16858 + ... + 19935.

It is an arithmetic number, because the mean of its divisors is an integer number (4452074).

Almost surely, 2^56624427 is an apocalyptic number.

56624427 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

56624427 is a deficient number, since it is larger than the sum of its proper divisors (32417053).

56624427 is a wasteful number, since it uses less digits than its factorization.

56624427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36824 (or 36815 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 56624427 is about 7524.9203982501. The cubic root of 56624427 is about 384.0029906994.

The spelling of 56624427 in words is "fifty-six million, six hundred twenty-four thousand, four hundred twenty-seven".