56403877 has 2 divisors, whose sum is σ = 56403878. Its totient is φ = 56403876.

The previous prime is 56403871. The next prime is 56403929. The reversal of 56403877 is 77830465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39765636 + 16638241 = 6306^2 + 4079^2 .

It is a cyclic number.

It is not a de Polignac number, because 56403877 - 2²³ = 48015269 is a prime.

It is a super-2 number, since 2×56403877² = 6362794681262258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56403871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28201938 + 28201939.

It is an arithmetic number, because the mean of its divisors is an integer number (28201939).

Almost surely, 2^56403877 is an apocalyptic number.

It is an amenable number.

56403877 is a deficient number, since it is larger than the sum of its proper divisors (1).

56403877 is an equidigital number, since it uses as much as digits as its factorization.

56403877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 56403877 is about 7510.2514605038. The cubic root of 56403877 is about 383.5037829673.

The spelling of 56403877 in words is "fifty-six million, four hundred three thousand, eight hundred seventy-seven".