55689842140 has 12 divisors (see below), whose sum is σ = 116948668536. Its totient is φ = 22275936848.

The previous prime is 55689842129. The next prime is 55689842179. The reversal of 55689842140 is 4124898655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1392246034 + ... + 1392246073.

It is an arithmetic number, because the mean of its divisors is an integer number (9745722378).

Almost surely, 2^55689842140 is an apocalyptic number.

It is an amenable number.

55689842140 is an abundant number, since it is smaller than the sum of its proper divisors (61258826396).

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

55689842140 is a wasteful number, since it uses less digits than its factorization.

55689842140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2784492116 (or 2784492114 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 52.

The spelling of 55689842140 in words is "fifty-five billion, six hundred eighty-nine million, eight hundred forty-two thousand, one hundred forty".