56377663 has 2 divisors, whose sum is σ = 56377664. Its totient is φ = 56377662.

The previous prime is 56377631. The next prime is 56377679. The reversal of 56377663 is 36677365.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56377663 - 2⁵ = 56377631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56377613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28188831 + 28188832.

It is an arithmetic number, because the mean of its divisors is an integer number (28188832).

Almost surely, 2^56377663 is an apocalyptic number.

56377663 is a deficient number, since it is larger than the sum of its proper divisors (1).

56377663 is an equidigital number, since it uses as much as digits as its factorization.

56377663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 476280, while the sum is 43.

The square root of 56377663 is about 7508.5060431487. The cubic root of 56377663 is about 383.4443619575. Note that the first 3 decimals are identical.

The spelling of 56377663 in words is "fifty-six million, three hundred seventy-seven thousand, six hundred sixty-three".