55489596 has 12 divisors (see below), whose sum is σ = 129475752. Its totient is φ = 18496528.

The previous prime is 55489571. The next prime is 55489613. The reversal of 55489596 is 69598455.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 2312055 + ... + 2312078.

It is an arithmetic number, because the mean of its divisors is an integer number (10789646).

Almost surely, 2^55489596 is an apocalyptic number.

It is an amenable number.

55489596 is an abundant number, since it is smaller than the sum of its proper divisors (73986156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55489596 is a wasteful number, since it uses less digits than its factorization.

55489596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4624140 (or 4624138 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 51.

The square root of 55489596 is about 7449.1339093884. The cubic root of 55489596 is about 381.4203446964.

The spelling of 55489596 in words is "fifty-five million, four hundred eighty-nine thousand, five hundred ninety-six".