55131267132 has 144 divisors (see below), whose sum is σ = 147647345664. Its totient is φ = 17317152000.

The previous prime is 55131267127. The next prime is 55131267143. The reversal of 55131267132 is 23176213155.

55131267132 is a `hidden beast` number, since 5 + 513 + 1 + 2 + 6 + 7 + 132 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36009207 + ... + 36010737.

Almost surely, 2^55131267132 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 55131267132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73823672832).

55131267132 is an abundant number, since it is smaller than the sum of its proper divisors (92516078532).

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

55131267132 is a wasteful number, since it uses less digits than its factorization.

55131267132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2400 (or 2395 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The spelling of 55131267132 in words is "fifty-five billion, one hundred thirty-one million, two hundred sixty-seven thousand, one hundred thirty-two".