56415277 has 2 divisors, whose sum is σ = 56415278. Its totient is φ = 56415276.

The previous prime is 56415259. The next prime is 56415283. The reversal of 56415277 is 77251465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53494596 + 2920681 = 7314^2 + 1709^2 .

It is a cyclic number.

It is not a de Polignac number, because 56415277 - 2¹¹ = 56413229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56415217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28207638 + 28207639.

It is an arithmetic number, because the mean of its divisors is an integer number (28207639).

Almost surely, 2^56415277 is an apocalyptic number.

It is an amenable number.

56415277 is a deficient number, since it is larger than the sum of its proper divisors (1).

56415277 is an equidigital number, since it uses as much as digits as its factorization.

56415277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58800, while the sum is 37.

The square root of 56415277 is about 7511.0103847618. The cubic root of 56415277 is about 383.5296183581.

The spelling of 56415277 in words is "fifty-six million, four hundred fifteen thousand, two hundred seventy-seven".