55127634072 has 128 divisors (see below), whose sum is σ = 162759897600. Its totient is φ = 15230757888.

The previous prime is 55127634049. The next prime is 55127634073. The reversal of 55127634072 is 27043672155.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55127634073) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 986004 + ... + 1040412.

It is an arithmetic number, because the mean of its divisors is an integer number (1271561700).

Almost surely, 2^55127634072 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 55127634072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81379948800).

55127634072 is an abundant number, since it is smaller than the sum of its proper divisors (107632263528).

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

55127634072 is a wasteful number, since it uses less digits than its factorization.

55127634072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54625 (or 54621 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 42.

The spelling of 55127634072 in words is "fifty-five billion, one hundred twenty-seven million, six hundred thirty-four thousand, seventy-two".