55099120 has 40 divisors (see below), whose sum is σ = 128786400. Its totient is φ = 21922560.

The previous prime is 55099117. The next prime is 55099133. The reversal of 55099120 is 2199055.

It is a tau number, because it is divible by the number of its divisors (40).

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, 14190 + ... + 17650.

It is an arithmetic number, because the mean of its divisors is an integer number (3219660).

Almost surely, 2^55099120 is an apocalyptic number.

It is an amenable number.

55099120 is an abundant number, since it is smaller than the sum of its proper divisors (73687280).

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

55099120 is a wasteful number, since it uses less digits than its factorization.

55099120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3673 (or 3667 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 31.

The square root of 55099120 is about 7422.8781479962. The cubic root of 55099120 is about 380.5235627010.

The spelling of 55099120 in words is "fifty-five million, ninety-nine thousand, one hundred twenty".