56459639 has 2 divisors, whose sum is σ = 56459640. Its totient is φ = 56459638.

The previous prime is 56459629. The next prime is 56459651. The reversal of 56459639 is 93695465.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56459639 - 2⁸ = 56459383 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56459593 and 56459602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56459629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28229819 + 28229820.

It is an arithmetic number, because the mean of its divisors is an integer number (28229820).

Almost surely, 2^56459639 is an apocalyptic number.

56459639 is a deficient number, since it is larger than the sum of its proper divisors (1).

56459639 is an equidigital number, since it uses as much as digits as its factorization.

56459639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 874800, while the sum is 47.

The square root of 56459639 is about 7513.9629357617. The cubic root of 56459639 is about 383.6301211776.

The spelling of 56459639 in words is "fifty-six million, four hundred fifty-nine thousand, six hundred thirty-nine".