56579154439 has 2 divisors, whose sum is σ = 56579154440. Its totient is φ = 56579154438.

The previous prime is 56579154419. The next prime is 56579154487. The reversal of 56579154439 is 93445197565.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56579154439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56579154409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28289577219 + 28289577220.

It is an arithmetic number, because the mean of its divisors is an integer number (28289577220).

Almost surely, 2^56579154439 is an apocalyptic number.

56579154439 is a deficient number, since it is larger than the sum of its proper divisors (1).

56579154439 is an equidigital number, since it uses as much as digits as its factorization.

56579154439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20412000, while the sum is 58.

The spelling of 56579154439 in words is "fifty-six billion, five hundred seventy-nine million, one hundred fifty-four thousand, four hundred thirty-nine".