56544913 has 2 divisors, whose sum is σ = 56544914. Its totient is φ = 56544912.

The previous prime is 56544911. The next prime is 56544937. The reversal of 56544913 is 31944565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39841344 + 16703569 = 6312^2 + 4087^2 .

It is a cyclic number.

It is not a de Polignac number, because 56544913 - 2¹ = 56544911 is a prime.

Together with 56544911, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (56544911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28272456 + 28272457.

It is an arithmetic number, because the mean of its divisors is an integer number (28272457).

Almost surely, 2^56544913 is an apocalyptic number.

It is an amenable number.

56544913 is a deficient number, since it is larger than the sum of its proper divisors (1).

56544913 is an equidigital number, since it uses as much as digits as its factorization.

56544913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 37.

The square root of 56544913 is about 7519.6351640223. The cubic root of 56544913 is about 383.8231630248.

The spelling of 56544913 in words is "fifty-six million, five hundred forty-four thousand, nine hundred thirteen".