55020516 has 12 divisors (see below), whose sum is σ = 128381232. Its totient is φ = 18340168.

The previous prime is 55020499. The next prime is 55020529. The reversal of 55020516 is 61502055.

It is a tau number, because it is divible by the number of its divisors (12).

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, 2292510 + ... + 2292533.

It is an arithmetic number, because the mean of its divisors is an integer number (10698436).

Almost surely, 2^55020516 is an apocalyptic number.

It is an amenable number.

55020516 is an abundant number, since it is smaller than the sum of its proper divisors (73360716).

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

55020516 is a wasteful number, since it uses less digits than its factorization.

55020516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4585050 (or 4585048 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 55020516 is about 7417.5815465689. The cubic root of 55020516 is about 380.3425258783.

The spelling of 55020516 in words is "fifty-five million, twenty thousand, five hundred sixteen".