56420613 has 6 divisors (see below), whose sum is σ = 81496454. Its totient is φ = 37613736.

The previous prime is 56420599. The next prime is 56420627. The reversal of 56420613 is 31602465.

56420613 is a `hidden beast` number, since 5 + 6 + 42 + 0 + 613 = 666.

56420613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (56420599) and next prime (56420627).

It can be written as a sum of positive squares in only one way, i.e., 48902049 + 7518564 = 6993^2 + 2742^2 .

It is not a de Polignac number, because 56420613 - 2¹⁶ = 56355077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56420213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3134470 + ... + 3134487.

Almost surely, 2^56420613 is an apocalyptic number.

It is an amenable number.

56420613 is a deficient number, since it is larger than the sum of its proper divisors (25075841).

56420613 is a wasteful number, since it uses less digits than its factorization.

56420613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6268963 (or 6268960 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 56420613 is about 7511.3655882270. The cubic root of 56420613 is about 383.5417099382.

The spelling of 56420613 in words is "fifty-six million, four hundred twenty thousand, six hundred thirteen".