55391189264 has 20 divisors (see below), whose sum is σ = 107347605504. Its totient is φ = 27688581408.

The previous prime is 55391189251. The next prime is 55391189309. The reversal of 55391189264 is 46298119355.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372872 + ... + 499815.

Almost surely, 2^55391189264 is an apocalyptic number.

It is an amenable number.

55391189264 is a deficient number, since it is larger than the sum of its proper divisors (51956416240).

55391189264 is a wasteful number, since it uses less digits than its factorization.

55391189264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876662 (or 876656 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 53.

The spelling of 55391189264 in words is "fifty-five billion, three hundred ninety-one million, one hundred eighty-nine thousand, two hundred sixty-four".