13553115552 has 36 divisors (see below), whose sum is σ = 38541673170. Its totient is φ = 4517705088.

The previous prime is 13553115551. The next prime is 13553115553. The reversal of 13553115552 is 25551135531.

13553115552 is a `hidden beast` number, since 1 + 3 + 553 + 1 + 1 + 55 + 52 = 666.

It is an interprime number because it is at equal distance from previous prime (13553115551) and next prime (13553115553).

It can be written as a sum of positive squares in only one way, i.e., 10470200976 + 3082914576 = 102324^2 + 55524^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (13553115551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23529427 + ... + 23530002.

Almost surely, 2^13553115552 is an apocalyptic number.

13553115552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13553115552 is an abundant number, since it is smaller than the sum of its proper divisors (24988557618).

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

13553115552 is a wasteful number, since it uses less digits than its factorization.

13553115552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47059445 (or 47059434 counting only the distinct ones).

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

The spelling of 13553115552 in words is "thirteen billion, five hundred fifty-three million, one hundred fifteen thousand, five hundred fifty-two".