56662645 has 16 divisors (see below), whose sum is σ = 73487232. Its totient is φ = 41693760.

The previous prime is 56662643. The next prime is 56662657. The reversal of 56662645 is 54626665.

56662645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56662645 - 2¹ = 56662643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56662598 and 56662607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56662643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18814 + ... + 21616.

It is an arithmetic number, because the mean of its divisors is an integer number (4592952).

Almost surely, 2^56662645 is an apocalyptic number.

It is an amenable number.

56662645 is a deficient number, since it is larger than the sum of its proper divisors (16824587).

56662645 is a wasteful number, since it uses less digits than its factorization.

56662645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3132.

The product of its digits is 259200, while the sum is 40.

The square root of 56662645 is about 7527.4593987613. The cubic root of 56662645 is about 384.0893640577.

The spelling of 56662645 in words is "fifty-six million, six hundred sixty-two thousand, six hundred forty-five".