53511000100 has 72 divisors (see below), whose sum is σ = 120256756200. Its totient is φ = 20643302400.

The previous prime is 53511000091. The next prime is 53511000107. The reversal of 53511000100 is 100011535.

It can be written as a sum of positive squares in 12 ways, for example, as 436977216 + 53074022884 = 20904^2 + 230378^2 .

It is not an unprimeable number, because it can be changed into a prime (53511000107) 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, 2719096 + ... + 2738704.

It is an arithmetic number, because the mean of its divisors is an integer number (1670232725).

Almost surely, 2^53511000100 is an apocalyptic number.

53511000100 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 53511000100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60128378100).

53511000100 is an abundant number, since it is smaller than the sum of its proper divisors (66745756100).

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

53511000100 is a wasteful number, since it uses less digits than its factorization.

53511000100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20593 (or 20586 counting only the distinct ones).

The product of its (nonzero) digits is 75, while the sum is 16.

Adding to 53511000100 its reverse (100011535), we get a palindrome (53611011635).

The spelling of 53511000100 in words is "fifty-three billion, five hundred eleven million, one hundred", and thus it is an aban number.