56915570429 has 2 divisors, whose sum is σ = 56915570430. Its totient is φ = 56915570428.

The previous prime is 56915570417. The next prime is 56915570443. The reversal of 56915570429 is 92407551965.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56906102500 + 9467929 = 238550^2 + 3077^2 .

It is a cyclic number.

It is not a de Polignac number, because 56915570429 - 2¹² = 56915566333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56915570489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28457785214 + 28457785215.

It is an arithmetic number, because the mean of its divisors is an integer number (28457785215).

Almost surely, 2^56915570429 is an apocalyptic number.

It is an amenable number.

56915570429 is a deficient number, since it is larger than the sum of its proper divisors (1).

56915570429 is an equidigital number, since it uses as much as digits as its factorization.

56915570429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402000, while the sum is 53.

The spelling of 56915570429 in words is "fifty-six billion, nine hundred fifteen million, five hundred seventy thousand, four hundred twenty-nine".