55512533120 has 256 divisors, whose sum is σ = 151016140800. Its totient is φ = 19327795200.

The previous prime is 55512533119. The next prime is 55512533161. The reversal of 55512533120 is 2133521555.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25927250 + ... + 25929390.

It is an arithmetic number, because the mean of its divisors is an integer number (589906800).

Almost surely, 2^55512533120 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 55512533120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75508070400).

55512533120 is an abundant number, since it is smaller than the sum of its proper divisors (95503607680).

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

55512533120 is a wasteful number, since it uses less digits than its factorization.

55512533120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2327 (or 2315 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 32.

The spelling of 55512533120 in words is "fifty-five billion, five hundred twelve million, five hundred thirty-three thousand, one hundred twenty".