56947613 has 2 divisors, whose sum is σ = 56947614. Its totient is φ = 56947612.

The previous prime is 56947607. The next prime is 56947663. The reversal of 56947613 is 31674965.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56220004 + 727609 = 7498^2 + 853^2 .

It is a cyclic number.

It is not a de Polignac number, because 56947613 - 2⁸ = 56947357 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 (56947663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28473806 + 28473807.

It is an arithmetic number, because the mean of its divisors is an integer number (28473807).

Almost surely, 2^56947613 is an apocalyptic number.

It is an amenable number.

56947613 is a deficient number, since it is larger than the sum of its proper divisors (1).

56947613 is an equidigital number, since it uses as much as digits as its factorization.

56947613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 41.

The square root of 56947613 is about 7546.3642239160. The cubic root of 56947613 is about 384.7321755690.

The spelling of 56947613 in words is "fifty-six million, nine hundred forty-seven thousand, six hundred thirteen".