55684988 has 12 divisors (see below), whose sum is σ = 100809240. Its totient is φ = 26882352.

The previous prime is 55684933. The next prime is 55684997. The reversal of 55684988 is 88948655.

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, 239906 + ... + 240137.

It is an arithmetic number, because the mean of its divisors is an integer number (8400770).

Almost surely, 2^55684988 is an apocalyptic number.

55684988 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

55684988 is a deficient number, since it is larger than the sum of its proper divisors (45124252).

55684988 is a wasteful number, since it uses less digits than its factorization.

55684988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480076 (or 480074 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 53.

The square root of 55684988 is about 7462.2374660687. The cubic root of 55684988 is about 381.8675106816.

The spelling of 55684988 in words is "fifty-five million, six hundred eighty-four thousand, nine hundred eighty-eight".