56538659 has 2 divisors, whose sum is σ = 56538660. Its totient is φ = 56538658.

The previous prime is 56538653. The next prime is 56538721. The reversal of 56538659 is 95683565.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56538659 - 2¹² = 56534563 is a prime.

It is not a weakly prime, because it can be changed into another prime (56538653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28269329 + 28269330.

It is an arithmetic number, because the mean of its divisors is an integer number (28269330).

Almost surely, 2^56538659 is an apocalyptic number.

56538659 is a deficient number, since it is larger than the sum of its proper divisors (1).

56538659 is an equidigital number, since it uses as much as digits as its factorization.

56538659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 972000, while the sum is 47.

The square root of 56538659 is about 7519.2193078803. The cubic root of 56538659 is about 383.8090119224.

The spelling of 56538659 in words is "fifty-six million, five hundred thirty-eight thousand, six hundred fifty-nine".