56622646 has 4 divisors (see below), whose sum is σ = 84933972. Its totient is φ = 28311322.

The previous prime is 56622637. The next prime is 56622649. The reversal of 56622646 is 64622665.

It is a happy number.

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

It is a super-2 number, since 2×56622646² = 6412248080082632, 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 as a sum of consecutive naturals, namely, 14155660 + ... + 14155663.

It is an arithmetic number, because the mean of its divisors is an integer number (21233493).

Almost surely, 2^56622646 is an apocalyptic number.

56622646 is a deficient number, since it is larger than the sum of its proper divisors (28311326).

56622646 is a wasteful number, since it uses less digits than its factorization.

56622646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28311325.

The product of its digits is 103680, while the sum is 37.

The square root of 56622646 is about 7524.8020571973. The cubic root of 56622646 is about 383.9989646601.

The spelling of 56622646 in words is "fifty-six million, six hundred twenty-two thousand, six hundred forty-six".