56101005977 has 2 divisors, whose sum is σ = 56101005978. Its totient is φ = 56101005976.

The previous prime is 56101005973. The next prime is 56101006019. The reversal of 56101005977 is 77950010165.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53220644416 + 2880361561 = 230696^2 + 53669^2 .

It is a cyclic number.

It is not a de Polignac number, because 56101005977 - 2² = 56101005973 is a prime.

It is not a weakly prime, because it can be changed into another prime (56101005971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28050502988 + 28050502989.

It is an arithmetic number, because the mean of its divisors is an integer number (28050502989).

Almost surely, 2^56101005977 is an apocalyptic number.

It is an amenable number.

56101005977 is a deficient number, since it is larger than the sum of its proper divisors (1).

56101005977 is an equidigital number, since it uses as much as digits as its factorization.

56101005977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 66150, while the sum is 41.

The spelling of 56101005977 in words is "fifty-six billion, one hundred one million, five thousand, nine hundred seventy-seven".