56620623 has 4 divisors (see below), whose sum is σ = 75494168. Its totient is φ = 37747080.

The previous prime is 56620607. The next prime is 56620633. The reversal of 56620623 is 32602665.

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

It is not a de Polignac number, because 56620623 - 2⁴ = 56620607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56620633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9436768 + ... + 9436773.

It is an arithmetic number, because the mean of its divisors is an integer number (18873542).

Almost surely, 2^56620623 is an apocalyptic number.

56620623 is a deficient number, since it is larger than the sum of its proper divisors (18873545).

56620623 is a wasteful number, since it uses less digits than its factorization.

56620623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18873544.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 56620623 is about 7524.6676338560. The cubic root of 56620623 is about 383.9943914654.

The spelling of 56620623 in words is "fifty-six million, six hundred twenty thousand, six hundred twenty-three".