55103277152 has 96 divisors (see below), whose sum is σ = 135557452800. Its totient is φ = 21420564480.

The previous prime is 55103277067. The next prime is 55103277221. The reversal of 55103277152 is 25177230155.

It is a happy number.

It is a super-2 number, since 2×55103277152² (a number of 22 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 15 ways as a sum of consecutive naturals, for example, 1081433 + ... + 1131239.

It is an arithmetic number, because the mean of its divisors is an integer number (1412056800).

Almost surely, 2^55103277152 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 55103277152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67778726400).

55103277152 is an abundant number, since it is smaller than the sum of its proper divisors (80454175648).

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

55103277152 is a wasteful number, since it uses less digits than its factorization.

55103277152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50284 (or 50276 counting only the distinct ones).

The product of its (nonzero) digits is 73500, while the sum is 38.

The spelling of 55103277152 in words is "fifty-five billion, one hundred three million, two hundred seventy-seven thousand, one hundred fifty-two".