56005005500957 has 2 divisors, whose sum is σ = 56005005500958. Its totient is φ = 56005005500956.

The previous prime is 56005005500929. The next prime is 56005005501041. The reversal of 56005005500957 is 75900550050065.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31328412758041 + 24676592742916 = 5597179^2 + 4967554^2 .

It is a cyclic number.

It is not a de Polignac number, because 56005005500957 - 2²⁴ = 56004988723741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56005005500357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28002502750478 + 28002502750479.

It is an arithmetic number, because the mean of its divisors is an integer number (28002502750479).

Almost surely, 2^{56005005500957} is an apocalyptic number.

It is an amenable number.

56005005500957 is a deficient number, since it is larger than the sum of its proper divisors (1).

56005005500957 is an equidigital number, since it uses as much as digits as its factorization.

56005005500957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1181250, while the sum is 47.

The spelling of 56005005500957 in words is "fifty-six trillion, five billion, five million, five hundred thousand, nine hundred fifty-seven".