55185964 has 12 divisors (see below), whose sum is σ = 96907104. Its totient is φ = 27498224.

The previous prime is 55185941. The next prime is 55185973. The reversal of 55185964 is 46958155.

It is a self number, because there is not a number n which added to its sum of digits gives 55185964.

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, 22372 + ... + 24715.

It is an arithmetic number, because the mean of its divisors is an integer number (8075592).

Almost surely, 2^55185964 is an apocalyptic number.

It is an amenable number.

55185964 is a deficient number, since it is larger than the sum of its proper divisors (41721140).

55185964 is a wasteful number, since it uses less digits than its factorization.

55185964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47384 (or 47382 counting only the distinct ones).

The product of its digits is 216000, while the sum is 43.

The square root of 55185964 is about 7428.7255973013. The cubic root of 55185964 is about 380.7233773964.

The spelling of 55185964 in words is "fifty-five million, one hundred eighty-five thousand, nine hundred sixty-four".