53185899900 has 144 divisors (see below), whose sum is σ = 176523701760. Its totient is φ = 12111456000.

The previous prime is 53185899889. The next prime is 53185899917. The reversal of 53185899900 is 999858135.

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, 517825 + ... + 611975.

It is an arithmetic number, because the mean of its divisors is an integer number (1225859040).

Almost surely, 2^53185899900 is an apocalyptic number.

53185899900 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 53185899900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88261850880).

53185899900 is an abundant number, since it is smaller than the sum of its proper divisors (123337801860).

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

53185899900 is a wasteful number, since it uses less digits than its factorization.

53185899900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94444 (or 94437 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 57.

The spelling of 53185899900 in words is "fifty-three billion, one hundred eighty-five million, eight hundred ninety-nine thousand, nine hundred".