56463977 has 2 divisors, whose sum is σ = 56463978. Its totient is φ = 56463976.

The previous prime is 56463973. The next prime is 56463983. The reversal of 56463977 is 77936465.

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., 41011216 + 15452761 = 6404^2 + 3931^2 .

It is a cyclic number.

It is not a de Polignac number, because 56463977 - 2² = 56463973 is a prime.

It is not a weakly prime, because it can be changed into another prime (56463971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28231988 + 28231989.

It is an arithmetic number, because the mean of its divisors is an integer number (28231989).

Almost surely, 2^56463977 is an apocalyptic number.

It is an amenable number.

56463977 is a deficient number, since it is larger than the sum of its proper divisors (1).

56463977 is an equidigital number, since it uses as much as digits as its factorization.

56463977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952560, while the sum is 47.

The square root of 56463977 is about 7514.2515928068. The cubic root of 56463977 is about 383.6399461598.

The spelling of 56463977 in words is "fifty-six million, four hundred sixty-three thousand, nine hundred seventy-seven".