55038087500 has 72 divisors (see below), whose sum is σ = 131332812912. Its totient is φ = 20013800000.

The previous prime is 55038087431. The next prime is 55038087509. The reversal of 55038087500 is 578083055.

It is not an unprimeable number, because it can be changed into a prime (55038087509) 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, 62639 + ... + 337638.

It is an arithmetic number, because the mean of its divisors is an integer number (1824066846).

Almost surely, 2^55038087500 is an apocalyptic number.

55038087500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55038087500 is an abundant number, since it is smaller than the sum of its proper divisors (76294725412).

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

55038087500 is a wasteful number, since it uses less digits than its factorization.

55038087500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400317 (or 400295 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 41.

The spelling of 55038087500 in words is "fifty-five billion, thirty-eight million, eighty-seven thousand, five hundred".