56166211 has 2 divisors, whose sum is σ = 56166212. Its totient is φ = 56166210.

The previous prime is 56166199. The next prime is 56166233. The reversal of 56166211 is 11266165.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56166211 - 2⁵ = 56166179 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56166211.

It is not a weakly prime, because it can be changed into another prime (56166241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28083105 + 28083106.

It is an arithmetic number, because the mean of its divisors is an integer number (28083106).

Almost surely, 2^56166211 is an apocalyptic number.

56166211 is a deficient number, since it is larger than the sum of its proper divisors (1).

56166211 is an equidigital number, since it uses as much as digits as its factorization.

56166211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 28.

The square root of 56166211 is about 7494.4119849392. The cubic root of 56166211 is about 382.9643748379.

The spelling of 56166211 in words is "fifty-six million, one hundred sixty-six thousand, two hundred eleven".