56622645 has 48 divisors (see below), whose sum is σ = 105356160. Its totient is φ = 29139264.

The previous prime is 56622637. The next prime is 56622649. The reversal of 56622645 is 54622665.

56622645 is a `hidden beast` number, since 5 + 6 + 6 + 2 + 2 + 645 = 666.

It is not a de Polignac number, because 56622645 - 2³ = 56622637 is a prime.

It is a super-2 number, since 2×56622645² = 6412247853592050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56622649) 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 47 ways as a sum of consecutive naturals, for example, 34432 + ... + 36038.

It is an arithmetic number, because the mean of its divisors is an integer number (2194920).

Almost surely, 2^56622645 is an apocalyptic number.

It is an amenable number.

56622645 is a deficient number, since it is larger than the sum of its proper divisors (48733515).

56622645 is a wasteful number, since it uses less digits than its factorization.

56622645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656 (or 1644 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 56622645 is about 7524.8019907503. The cubic root of 56622645 is about 383.9989623995.

The spelling of 56622645 in words is "fifty-six million, six hundred twenty-two thousand, six hundred forty-five".