55500000920 has 192 divisors, whose sum is σ = 164671768800. Its totient is φ = 16640225280.

The previous prime is 55500000883. The next prime is 55500000931. The reversal of 55500000920 is 2900000555.

55500000920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 55500000920.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 426800 + ... + 541440.

Almost surely, 2^55500000920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55500000920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82335884400).

55500000920 is an abundant number, since it is smaller than the sum of its proper divisors (109171767880).

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

55500000920 is a wasteful number, since it uses less digits than its factorization.

55500000920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114698 (or 114687 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 26.

The spelling of 55500000920 in words is "fifty-five billion, five hundred million, nine hundred twenty", and thus it is an aban number.