55120052 has 48 divisors (see below), whose sum is σ = 114815232. Its totient is φ = 22894080.

The previous prime is 55120003. The next prime is 55120061. The reversal of 55120052 is 25002155.

It is a congruent number.

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, 18977 + ... + 21687.

It is an arithmetic number, because the mean of its divisors is an integer number (2391984).

Almost surely, 2^55120052 is an apocalyptic number.

55120052 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

55120052 is an abundant number, since it is smaller than the sum of its proper divisors (59695180).

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

55120052 is a wasteful number, since it uses less digits than its factorization.

55120052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2768 (or 2766 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 55120052 is about 7424.2879793284. The cubic root of 55120052 is about 380.5717432091.

The spelling of 55120052 in words is "fifty-five million, one hundred twenty thousand, fifty-two".