55011080 has 32 divisors (see below), whose sum is σ = 130291200. Its totient is φ = 20846016.

The previous prime is 55011079. The next prime is 55011091. The reversal of 55011080 is 8011055.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 35432 + ... + 36951.

It is an arithmetic number, because the mean of its divisors is an integer number (4071600).

Almost surely, 2^55011080 is an apocalyptic number.

It is an amenable number.

55011080 is an abundant number, since it is smaller than the sum of its proper divisors (75280120).

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

55011080 is a wasteful number, since it uses less digits than its factorization.

55011080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72413 (or 72409 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 55011080 is about 7416.9454629247. The cubic root of 55011080 is about 380.3207817634.

The spelling of 55011080 in words is "fifty-five million, eleven thousand, eighty".