56506039 has 2 divisors, whose sum is σ = 56506040. Its totient is φ = 56506038.

The previous prime is 56506033. The next prime is 56506063. The reversal of 56506039 is 93060565.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56506039 - 2³ = 56506031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56505995 and 56506013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56506031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28253019 + 28253020.

It is an arithmetic number, because the mean of its divisors is an integer number (28253020).

Almost surely, 2^56506039 is an apocalyptic number.

56506039 is a deficient number, since it is larger than the sum of its proper divisors (1).

56506039 is an equidigital number, since it uses as much as digits as its factorization.

56506039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24300, while the sum is 34.

The square root of 56506039 is about 7517.0498867574. The cubic root of 56506039 is about 383.7351848058.

The spelling of 56506039 in words is "fifty-six million, five hundred six thousand, thirty-nine".