55634566 has 16 divisors (see below), whose sum is σ = 90345024. Its totient is φ = 25542144.

The previous prime is 55634563. The next prime is 55634587. The reversal of 55634566 is 66543655.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55634563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526 + ... + 10561.

It is an arithmetic number, because the mean of its divisors is an integer number (5646564).

Almost surely, 2^55634566 is an apocalyptic number.

55634566 is a deficient number, since it is larger than the sum of its proper divisors (34710458).

55634566 is a wasteful number, since it uses less digits than its factorization.

55634566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11295.

The product of its digits is 324000, while the sum is 40.

The square root of 55634566 is about 7458.8582236157. The cubic root of 55634566 is about 381.7522172617.

The spelling of 55634566 in words is "fifty-five million, six hundred thirty-four thousand, five hundred sixty-six".