55499128 has 16 divisors (see below), whose sum is σ = 104212080. Its totient is φ = 27709248.

The previous prime is 55499113. The next prime is 55499137. The reversal of 55499128 is 82199455.

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, 1276 + ... + 10612.

It is an arithmetic number, because the mean of its divisors is an integer number (6513255).

Almost surely, 2^55499128 is an apocalyptic number.

It is an amenable number.

55499128 is a deficient number, since it is larger than the sum of its proper divisors (48712952).

55499128 is a wasteful number, since it uses less digits than its factorization.

55499128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10086 (or 10082 counting only the distinct ones).

The product of its digits is 129600, while the sum is 43.

The square root of 55499128 is about 7449.7736878378. The cubic root of 55499128 is about 381.4421835685.

The spelling of 55499128 in words is "fifty-five million, four hundred ninety-nine thousand, one hundred twenty-eight".