56993513 has 2 divisors, whose sum is σ = 56993514. Its totient is φ = 56993512.

The previous prime is 56993491. The next prime is 56993551. The reversal of 56993513 is 31539965.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54346384 + 2647129 = 7372^2 + 1627^2 .

It is a cyclic number.

It is not a de Polignac number, because 56993513 - 2⁶ = 56993449 is a prime.

It is not a weakly prime, because it can be changed into another prime (56993213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28496756 + 28496757.

It is an arithmetic number, because the mean of its divisors is an integer number (28496757).

Almost surely, 2^56993513 is an apocalyptic number.

It is an amenable number.

56993513 is a deficient number, since it is larger than the sum of its proper divisors (1).

56993513 is an equidigital number, since it uses as much as digits as its factorization.

56993513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 109350, while the sum is 41.

The square root of 56993513 is about 7549.4048109768. The cubic root of 56993513 is about 384.8355130259.

The spelling of 56993513 in words is "fifty-six million, nine hundred ninety-three thousand, five hundred thirteen".