55664626 has 8 divisors (see below), whose sum is σ = 83769840. Its totient is φ = 27741348.

The previous prime is 55664611. The next prime is 55664629. The reversal of 55664626 is 62646655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (55664629) 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, 44716 + ... + 45943.

It is an arithmetic number, because the mean of its divisors is an integer number (10471230).

Almost surely, 2^55664626 is an apocalyptic number.

55664626 is a deficient number, since it is larger than the sum of its proper divisors (28105214).

55664626 is a wasteful number, since it uses less digits than its factorization.

55664626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90968.

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

The square root of 55664626 is about 7460.8730052186. The cubic root of 55664626 is about 381.8209599296.

The spelling of 55664626 in words is "fifty-five million, six hundred sixty-four thousand, six hundred twenty-six".