55250155312 has 120 divisors (see below), whose sum is σ = 124634022912. Its totient is φ = 23525606400.

The previous prime is 55250155223. The next prime is 55250155361. The reversal of 55250155312 is 21355105255.

It is a Harshad number since it is a multiple of its sum of digits (34).

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 23 ways as a sum of consecutive naturals, for example, 11340237 + ... + 11345107.

Almost surely, 2^55250155312 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 55250155312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62317011456).

55250155312 is an abundant number, since it is smaller than the sum of its proper divisors (69383867600).

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

55250155312 is a wasteful number, since it uses less digits than its factorization.

55250155312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5147 (or 5124 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 34.

The spelling of 55250155312 in words is "fifty-five billion, two hundred fifty million, one hundred fifty-five thousand, three hundred twelve".