56029736809 has 2 divisors, whose sum is σ = 56029736810. Its totient is φ = 56029736808.

The previous prime is 56029736779. The next prime is 56029736813. The reversal of 56029736809 is 90863792065.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50820939225 + 5208797584 = 225435^2 + 72172^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56029736809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56029736809.

It is not a weakly prime, because it can be changed into another prime (56029736849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28014868404 + 28014868405.

It is an arithmetic number, because the mean of its divisors is an integer number (28014868405).

Almost surely, 2^56029736809 is an apocalyptic number.

It is an amenable number.

56029736809 is a deficient number, since it is larger than the sum of its proper divisors (1).

56029736809 is an equidigital number, since it uses as much as digits as its factorization.

56029736809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4898880, while the sum is 55.

The spelling of 56029736809 in words is "fifty-six billion, twenty-nine million, seven hundred thirty-six thousand, eight hundred nine".