56579154409 has 2 divisors, whose sum is σ = 56579154410. Its totient is φ = 56579154408.

The previous prime is 56579154383. The next prime is 56579154413. The reversal of 56579154409 is 90445197565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53420152384 + 3159002025 = 231128^2 + 56205^2 .

It is a cyclic number.

It is not a de Polignac number, because 56579154409 - 2⁵ = 56579154377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56579154409.

It is not a weakly prime, because it can be changed into another prime (56579154419) 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, 28289577204 + 28289577205.

It is an arithmetic number, because the mean of its divisors is an integer number (28289577205).

Almost surely, 2^56579154409 is an apocalyptic number.

It is an amenable number.

56579154409 is a deficient number, since it is larger than the sum of its proper divisors (1).

56579154409 is an equidigital number, since it uses as much as digits as its factorization.

56579154409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804000, while the sum is 55.

The spelling of 56579154409 in words is "fifty-six billion, five hundred seventy-nine million, one hundred fifty-four thousand, four hundred nine".