56677013 has 2 divisors, whose sum is σ = 56677014. Its totient is φ = 56677012.

The previous prime is 56677009. The next prime is 56677039. The reversal of 56677013 is 31077665.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38031889 + 18645124 = 6167^2 + 4318^2 .

It is a cyclic number.

It is not a de Polignac number, because 56677013 - 2² = 56677009 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56677043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28338506 + 28338507.

It is an arithmetic number, because the mean of its divisors is an integer number (28338507).

Almost surely, 2^56677013 is an apocalyptic number.

It is an amenable number.

56677013 is a deficient number, since it is larger than the sum of its proper divisors (1).

56677013 is an equidigital number, since it uses as much as digits as its factorization.

56677013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 56677013 is about 7528.4137107361. The cubic root of 56677013 is about 384.1218259474.

The spelling of 56677013 in words is "fifty-six million, six hundred seventy-seven thousand, thirteen".