56564401 has 2 divisors, whose sum is σ = 56564402. Its totient is φ = 56564400.

The previous prime is 56564381. The next prime is 56564419. The reversal of 56564401 is 10446565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56175025 + 389376 = 7495^2 + 624^2 .

It is a cyclic number.

It is not a de Polignac number, because 56564401 - 2¹³ = 56556209 is a prime.

It is not a weakly prime, because it can be changed into another prime (56564701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28282200 + 28282201.

It is an arithmetic number, because the mean of its divisors is an integer number (28282201).

Almost surely, 2^56564401 is an apocalyptic number.

It is an amenable number.

56564401 is a deficient number, since it is larger than the sum of its proper divisors (1).

56564401 is an equidigital number, since it uses as much as digits as its factorization.

56564401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 56564401 is about 7520.9308599401. The cubic root of 56564401 is about 383.8672523824.

It can be divided in two parts, 56564 and 401, that added together give a palindrome (56965).

The spelling of 56564401 in words is "fifty-six million, five hundred sixty-four thousand, four hundred one".