55500017874 has 48 divisors (see below), whose sum is σ = 129165186528. Its totient is φ = 15851904768.

The previous prime is 55500017843. The next prime is 55500017879. The reversal of 55500017874 is 47871000555.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55500017879) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 907362 + ... + 966594.

It is an arithmetic number, because the mean of its divisors is an integer number (2690941386).

Almost surely, 2^55500017874 is an apocalyptic number.

55500017874 is an abundant number, since it is smaller than the sum of its proper divisors (73665168654).

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

55500017874 is a wasteful number, since it uses less digits than its factorization.

55500017874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62439 (or 62432 counting only the distinct ones).

The product of its (nonzero) digits is 196000, while the sum is 42.

The spelling of 55500017874 in words is "fifty-five billion, five hundred million, seventeen thousand, eight hundred seventy-four".