55390370564 has 48 divisors (see below), whose sum is σ = 103757262336. Its totient is φ = 25781683200.

The previous prime is 55390370551. The next prime is 55390370573. The reversal of 55390370564 is 46507309355.

55390370564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6376304 + ... + 6384984.

It is an arithmetic number, because the mean of its divisors is an integer number (2161609632).

Almost surely, 2^55390370564 is an apocalyptic number.

It is an amenable number.

55390370564 is a deficient number, since it is larger than the sum of its proper divisors (48366891772).

55390370564 is a wasteful number, since it uses less digits than its factorization.

55390370564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9716 (or 9714 counting only the distinct ones).

The product of its (nonzero) digits is 1701000, while the sum is 47.

The spelling of 55390370564 in words is "fifty-five billion, three hundred ninety million, three hundred seventy thousand, five hundred sixty-four".