53511125553 has 16 divisors (see below), whose sum is σ = 79352083200. Its totient is φ = 35639730000.

The previous prime is 53511125537. The next prime is 53511125561. The reversal of 53511125553 is 35552111535.

53511125553 is a `hidden beast` number, since 5 + 351 + 1 + 1 + 255 + 53 = 666.

53511125553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53511125553 - 2⁴ = 53511125537 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53511125533) 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, 925698 + ... + 981803.

It is an arithmetic number, because the mean of its divisors is an integer number (4959505200).

Almost surely, 2^53511125553 is an apocalyptic number.

It is an amenable number.

53511125553 is a deficient number, since it is larger than the sum of its proper divisors (25840957647).

53511125553 is a wasteful number, since it uses less digits than its factorization.

53511125553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1908549 (or 1908543 counting only the distinct ones).

The product of its digits is 56250, while the sum is 36.

The spelling of 53511125553 in words is "fifty-three billion, five hundred eleven million, one hundred twenty-five thousand, five hundred fifty-three".