55150829121232 has 160 divisors (see below), whose sum is σ = 124736265118080. Its totient is φ = 23388655288320.

The previous prime is 55150829121187. The next prime is 55150829121287. The reversal of 55150829121232 is 23212192805155.

It is a super-2 number, since 2×55150829121232² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

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, 323625007 + ... + 323795377.

It is an arithmetic number, because the mean of its divisors is an integer number (779601656988).

Almost surely, 2^{55150829121232} is an apocalyptic number.

55150829121232 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55150829121232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62368132559040).

55150829121232 is an abundant number, since it is smaller than the sum of its proper divisors (69585435996848).

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

55150829121232 is a wasteful number, since it uses less digits than its factorization.

55150829121232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172581 (or 172575 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 46.

The spelling of 55150829121232 in words is "fifty-five trillion, one hundred fifty billion, eight hundred twenty-nine million, one hundred twenty-one thousand, two hundred thirty-two".