56415259 has 2 divisors, whose sum is σ = 56415260. Its totient is φ = 56415258.

The previous prime is 56415223. The next prime is 56415277. The reversal of 56415259 is 95251465.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56415259 - 2⁹ = 56414747 is a prime.

It is not a weakly prime, because it can be changed into another prime (56415659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28207629 + 28207630.

It is an arithmetic number, because the mean of its divisors is an integer number (28207630).

Almost surely, 2^56415259 is an apocalyptic number.

56415259 is a deficient number, since it is larger than the sum of its proper divisors (1).

56415259 is an equidigital number, since it uses as much as digits as its factorization.

56415259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54000, while the sum is 37.

The square root of 56415259 is about 7511.0091865208. The cubic root of 56415259 is about 383.5295775681.

The spelling of 56415259 in words is "fifty-six million, four hundred fifteen thousand, two hundred fifty-nine".