56503877 has 2 divisors, whose sum is σ = 56503878. Its totient is φ = 56503876.

The previous prime is 56503871. The next prime is 56503897. The reversal of 56503877 is 77830565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56460196 + 43681 = 7514^2 + 209^2 .

It is a cyclic number.

It is not a de Polignac number, because 56503877 - 2⁸ = 56503621 is a prime.

It is a super-2 number, since 2×56503877² = 6385376232062258, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56503871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28251938 + 28251939.

It is an arithmetic number, because the mean of its divisors is an integer number (28251939).

Almost surely, 2^56503877 is an apocalyptic number.

It is an amenable number.

56503877 is a deficient number, since it is larger than the sum of its proper divisors (1).

56503877 is an equidigital number, since it uses as much as digits as its factorization.

56503877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 56503877 is about 7516.9060789663. The cubic root of 56503877 is about 383.7302906619.

The spelling of 56503877 in words is "fifty-six million, five hundred three thousand, eight hundred seventy-seven".