20130053553 has 32 divisors (see below), whose sum is σ = 30180211200. Its totient is φ = 13259207808.

The previous prime is 20130053527. The next prime is 20130053569. The reversal of 20130053553 is 35535003102.

20130053553 is a `hidden beast` number, since 2 + 0 + 1 + 300 + 5 + 355 + 3 = 666.

It is not a de Polignac number, because 20130053553 - 2⁵ = 20130053521 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20130053653) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4508200 + ... + 4512662.

It is an arithmetic number, because the mean of its divisors is an integer number (943131600).

Almost surely, 2^20130053553 is an apocalyptic number.

It is an amenable number.

20130053553 is a deficient number, since it is larger than the sum of its proper divisors (10050157647).

20130053553 is a wasteful number, since it uses less digits than its factorization.

20130053553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6438 (or 6432 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 27.

Adding to 20130053553 its reverse (35535003102), we get a palindrome (55665056655).

The spelling of 20130053553 in words is "twenty billion, one hundred thirty million, fifty-three thousand, five hundred fifty-three".