55989696 has 56 divisors (see below), whose sum is σ = 169306240. Its totient is φ = 15996672.

The previous prime is 55989673. The next prime is 55989701. The reversal of 55989696 is 69698955.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19486 + ... + 22173.

Almost surely, 2^55989696 is an apocalyptic number.

55989696 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

55989696 is an abundant number, since it is smaller than the sum of its proper divisors (113316544).

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

55989696 is a wasteful number, since it uses less digits than its factorization.

55989696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41681 (or 41671 counting only the distinct ones).

The product of its digits is 5248800, while the sum is 57.

The square root of 55989696 is about 7482.6262769164. The cubic root of 55989696 is about 382.5627698260.

The spelling of 55989696 in words is "fifty-five million, nine hundred eighty-nine thousand, six hundred ninety-six".