55666264 has 16 divisors (see below), whose sum is σ = 106144200. Its totient is φ = 27361152.

The previous prime is 55666249. The next prime is 55666267. The reversal of 55666264 is 46266655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55666267) 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, 58497 + ... + 59440.

Almost surely, 2^55666264 is an apocalyptic number.

It is an amenable number.

55666264 is a deficient number, since it is larger than the sum of its proper divisors (50477936).

55666264 is a wasteful number, since it uses less digits than its factorization.

55666264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118002 (or 117998 counting only the distinct ones).

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

The square root of 55666264 is about 7460.9827770877. The cubic root of 55666264 is about 381.8247050765.

The spelling of 55666264 in words is "fifty-five million, six hundred sixty-six thousand, two hundred sixty-four".