56515159 has 2 divisors, whose sum is σ = 56515160. Its totient is φ = 56515158.

The previous prime is 56515141. The next prime is 56515183. The reversal of 56515159 is 95151565.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56515159 - 2⁷ = 56515031 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56515189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28257579 + 28257580.

It is an arithmetic number, because the mean of its divisors is an integer number (28257580).

Almost surely, 2^56515159 is an apocalyptic number.

56515159 is a deficient number, since it is larger than the sum of its proper divisors (1).

56515159 is an equidigital number, since it uses as much as digits as its factorization.

56515159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33750, while the sum is 37.

The square root of 56515159 is about 7517.6564832400. The cubic root of 56515159 is about 383.7558284791.

The spelling of 56515159 in words is "fifty-six million, five hundred fifteen thousand, one hundred fifty-nine".