55170840588 has 96 divisors (see below), whose sum is σ = 143630726400. Its totient is φ = 16380112896.

The previous prime is 55170840583. The next prime is 55170840611. The reversal of 55170840588 is 88504807155.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 55170840588.

It is not an unprimeable number, because it can be changed into a prime (55170840581) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3903831 + ... + 3917937.

It is an arithmetic number, because the mean of its divisors is an integer number (1496153400).

Almost surely, 2^55170840588 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 55170840588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71815363200).

55170840588 is an abundant number, since it is smaller than the sum of its proper divisors (88459885812).

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

55170840588 is a wasteful number, since it uses less digits than its factorization.

55170840588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15159 (or 15157 counting only the distinct ones).

The product of its (nonzero) digits is 1792000, while the sum is 51.

The spelling of 55170840588 in words is "fifty-five billion, one hundred seventy million, eight hundred forty thousand, five hundred eighty-eight".