56626643 has 4 divisors (see below), whose sum is σ = 59957640. Its totient is φ = 53295648.

The previous prime is 56626637. The next prime is 56626693. The reversal of 56626643 is 34662665.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34662665 = 5 ⋅6932533.

It is a cyclic number.

It is not a de Polignac number, because 56626643 - 2⁶ = 56626579 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56626597 and 56626606.

It is not an unprimeable number, because it can be changed into a prime (56626693) 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, 1665473 + ... + 1665506.

It is an arithmetic number, because the mean of its divisors is an integer number (14989410).

Almost surely, 2^56626643 is an apocalyptic number.

56626643 is a deficient number, since it is larger than the sum of its proper divisors (3330997).

56626643 is a wasteful number, since it uses less digits than its factorization.

56626643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3330996.

The product of its digits is 155520, while the sum is 38.

The square root of 56626643 is about 7525.0676408920. The cubic root of 56626643 is about 384.0079999599.

The spelling of 56626643 in words is "fifty-six million, six hundred twenty-six thousand, six hundred forty-three".