56540851 has 2 divisors, whose sum is σ = 56540852. Its totient is φ = 56540850.

The previous prime is 56540843. The next prime is 56540857. The reversal of 56540851 is 15804565.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56540851 - 2³ = 56540843 is a prime.

It is not a weakly prime, because it can be changed into another prime (56540857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28270425 + 28270426.

It is an arithmetic number, because the mean of its divisors is an integer number (28270426).

Almost surely, 2^56540851 is an apocalyptic number.

56540851 is a deficient number, since it is larger than the sum of its proper divisors (1).

56540851 is an equidigital number, since it uses as much as digits as its factorization.

56540851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 56540851 is about 7519.3650662805. The cubic root of 56540851 is about 383.8139719415.

The spelling of 56540851 in words is "fifty-six million, five hundred forty thousand, eight hundred fifty-one".