56397413 has 2 divisors, whose sum is σ = 56397414. Its totient is φ = 56397412.

The previous prime is 56397409. The next prime is 56397437. The reversal of 56397413 is 31479365.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55383364 + 1014049 = 7442^2 + 1007^2 .

It is a cyclic number.

It is not a de Polignac number, because 56397413 - 2² = 56397409 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56397113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28198706 + 28198707.

It is an arithmetic number, because the mean of its divisors is an integer number (28198707).

Almost surely, 2^56397413 is an apocalyptic number.

It is an amenable number.

56397413 is a deficient number, since it is larger than the sum of its proper divisors (1).

56397413 is an equidigital number, since it uses as much as digits as its factorization.

56397413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 38.

The square root of 56397413 is about 7509.8211030623. The cubic root of 56397413 is about 383.4891323009.

The spelling of 56397413 in words is "fifty-six million, three hundred ninety-seven thousand, four hundred thirteen".