55510518900 has 288 divisors, whose sum is σ = 171139268608. Its totient is φ = 13869273600.

The previous prime is 55510518887. The next prime is 55510518901. The reversal of 55510518900 is 981501555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55510518901) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 50786754 + ... + 50787846.

Almost surely, 2^55510518900 is an apocalyptic number.

55510518900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55510518900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85569634304).

55510518900 is an abundant number, since it is smaller than the sum of its proper divisors (115628749708).

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

55510518900 is a wasteful number, since it uses less digits than its factorization.

55510518900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311 (or 1304 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 39.

The spelling of 55510518900 in words is "fifty-five billion, five hundred ten million, five hundred eighteen thousand, nine hundred".