55678925940 has 48 divisors (see below), whose sum is σ = 170073812160. Its totient is φ = 13497921280.

The previous prime is 55678925923. The next prime is 55678925971. The reversal of 55678925940 is 4952987655.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

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, 42180345 + ... + 42181664.

It is an arithmetic number, because the mean of its divisors is an integer number (3543204420).

Almost surely, 2^55678925940 is an apocalyptic number.

It is an amenable number.

55678925940 is an abundant number, since it is smaller than the sum of its proper divisors (114394886220).

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

55678925940 is a wasteful number, since it uses less digits than its factorization.

55678925940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84362032 (or 84362030 counting only the distinct ones).

The product of its (nonzero) digits is 27216000, while the sum is 60.

The spelling of 55678925940 in words is "fifty-five billion, six hundred seventy-eight million, nine hundred twenty-five thousand, nine hundred forty".