55010502120 has 256 divisors, whose sum is σ = 190625218560. Its totient is φ = 12439913472.

The previous prime is 55010502089. The next prime is 55010502133. The reversal of 55010502120 is 2120501055.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 69021562 + ... + 69022358.

It is an arithmetic number, because the mean of its divisors is an integer number (744629760).

Almost surely, 2^55010502120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55010502120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95312609280).

55010502120 is an abundant number, since it is smaller than the sum of its proper divisors (135614716440).

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

55010502120 is a wasteful number, since it uses less digits than its factorization.

55010502120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592 (or 1588 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

The spelling of 55010502120 in words is "fifty-five billion, ten million, five hundred two thousand, one hundred twenty".