53551850500 has 48 divisors (see below), whose sum is σ = 117283420800. Its totient is φ = 21361000800.

The previous prime is 53551850483. The next prime is 53551850503. The reversal of 53551850500 is 505815535.

It is a self number, because there is not a number n which added to its sum of digits gives 53551850500.

It is not an unprimeable number, because it can be changed into a prime (53551850503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30331 + ... + 328669.

It is an arithmetic number, because the mean of its divisors is an integer number (2443404600).

Almost surely, 2^53551850500 is an apocalyptic number.

53551850500 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 53551850500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58641710400).

53551850500 is an abundant number, since it is smaller than the sum of its proper divisors (63731570300).

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

53551850500 is a wasteful number, since it uses less digits than its factorization.

53551850500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298717 (or 298705 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 37.

The spelling of 53551850500 in words is "fifty-three billion, five hundred fifty-one million, eight hundred fifty thousand, five hundred".