56909348610251 has 2 divisors, whose sum is σ = 56909348610252. Its totient is φ = 56909348610250.

The previous prime is 56909348610227. The next prime is 56909348610337. The reversal of 56909348610251 is 15201684390965.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56909348610251 is a prime.

It is not a weakly prime, because it can be changed into another prime (56909348610221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28454674305125 + 28454674305126.

It is an arithmetic number, because the mean of its divisors is an integer number (28454674305126).

Almost surely, 2^{56909348610251} is an apocalyptic number.

56909348610251 is a deficient number, since it is larger than the sum of its proper divisors (1).

56909348610251 is an equidigital number, since it uses as much as digits as its factorization.

56909348610251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13996800, while the sum is 59.

The spelling of 56909348610251 in words is "fifty-six trillion, nine hundred nine billion, three hundred forty-eight million, six hundred ten thousand, two hundred fifty-one".