56913211 has 2 divisors, whose sum is σ = 56913212. Its totient is φ = 56913210.

The previous prime is 56913203. The next prime is 56913221. The reversal of 56913211 is 11231965.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56913211 - 2³ = 56913203 is a prime.

It is a super-2 number, since 2×56913211² = 6478227172661042, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56913211.

It is not a weakly prime, because it can be changed into another prime (56913221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28456605 + 28456606.

It is an arithmetic number, because the mean of its divisors is an integer number (28456606).

Almost surely, 2^56913211 is an apocalyptic number.

56913211 is a deficient number, since it is larger than the sum of its proper divisors (1).

56913211 is an equidigital number, since it uses as much as digits as its factorization.

56913211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 28.

The square root of 56913211 is about 7544.0845037685. The cubic root of 56913211 is about 384.6546878471.

The spelling of 56913211 in words is "fifty-six million, nine hundred thirteen thousand, two hundred eleven".