56622811 has 4 divisors (see below), whose sum is σ = 64711792. Its totient is φ = 48533832.

The previous prime is 56622799. The next prime is 56622817. The reversal of 56622811 is 11822665.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56622811 - 2¹¹ = 56620763 is a prime.

It is a super-2 number, since 2×56622811² = 6412285451083442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56622817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4044480 + ... + 4044493.

It is an arithmetic number, because the mean of its divisors is an integer number (16177948).

Almost surely, 2^56622811 is an apocalyptic number.

56622811 is a deficient number, since it is larger than the sum of its proper divisors (8088981).

56622811 is an equidigital number, since it uses as much as digits as its factorization.

56622811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8088980.

The product of its digits is 5760, while the sum is 31.

The square root of 56622811 is about 7524.8130209328. The cubic root of 56622811 is about 383.9993376544. Note that the first 3 decimals are identical.

The spelling of 56622811 in words is "fifty-six million, six hundred twenty-two thousand, eight hundred eleven".