55120260 has 48 divisors (see below), whose sum is σ = 166211136. Its totient is φ = 13567872.

The previous prime is 55120189. The next prime is 55120283. The reversal of 55120260 is 6202155.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34554 + ... + 36113.

It is an arithmetic number, because the mean of its divisors is an integer number (3462732).

Almost surely, 2^55120260 is an apocalyptic number.

It is an amenable number.

55120260 is an abundant number, since it is smaller than the sum of its proper divisors (111090876).

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

55120260 is a wasteful number, since it uses less digits than its factorization.

55120260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70692 (or 70690 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 55120260 is about 7424.3019873925. The cubic root of 55120260 is about 380.5722219146.

The spelling of 55120260 in words is "fifty-five million, one hundred twenty thousand, two hundred sixty".