53503111100 has 18 divisors (see below), whose sum is σ = 116101751304. Its totient is φ = 21401244400.

The previous prime is 53503111091. The next prime is 53503111121. The reversal of 53503111100 is 111130535.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 267515456 + ... + 267515655.

Almost surely, 2^53503111100 is an apocalyptic number.

53503111100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53503111100 is an abundant number, since it is smaller than the sum of its proper divisors (62598640204).

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

53503111100 is a wasteful number, since it uses less digits than its factorization.

53503111100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535031125 (or 535031118 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 20.

Adding to 53503111100 its reverse (111130535), we get a palindrome (53614241635).

The spelling of 53503111100 in words is "fifty-three billion, five hundred three million, one hundred eleven thousand, one hundred".