55871890284 has 48 divisors (see below), whose sum is σ = 149290400000. Its totient is φ = 15931394496.

The previous prime is 55871890259. The next prime is 55871890307. The reversal of 55871890284 is 48209817855.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 624559 + ... + 708390.

Almost surely, 2^55871890284 is an apocalyptic number.

It is an amenable number.

55871890284 is an abundant number, since it is smaller than the sum of its proper divisors (93418509716).

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

55871890284 is a wasteful number, since it uses less digits than its factorization.

55871890284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333462 (or 1333460 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 57.

The spelling of 55871890284 in words is "fifty-five billion, eight hundred seventy-one million, eight hundred ninety thousand, two hundred eighty-four".