55105171240 has 32 divisors (see below), whose sum is σ = 141699012480. Its totient is φ = 18893201472.

The previous prime is 55105171223. The next prime is 55105171241. The reversal of 55105171240 is 4217150155.

It is not an unprimeable number, because it can be changed into a prime (55105171241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98401812 + ... + 98402371.

It is an arithmetic number, because the mean of its divisors is an integer number (4428094140).

Almost surely, 2^55105171240 is an apocalyptic number.

It is an amenable number.

55105171240 is an abundant number, since it is smaller than the sum of its proper divisors (86593841240).

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

55105171240 is a wasteful number, since it uses less digits than its factorization.

55105171240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196804201 (or 196804197 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 31.

The spelling of 55105171240 in words is "fifty-five billion, one hundred five million, one hundred seventy-one thousand, two hundred forty".