13553500331 has 4 divisors (see below), whose sum is σ = 15489714672. Its totient is φ = 11617285992.

The previous prime is 13553500327. The next prime is 13553500333. The reversal of 13553500331 is 13300535531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13553500331 - 2² = 13553500327 is a prime.

It is a super-2 number, since 2×13553500331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13553500294 and 13553500303.

It is not an unprimeable number, because it can be changed into a prime (13553500333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 968107160 + ... + 968107173.

It is an arithmetic number, because the mean of its divisors is an integer number (3872428668).

Almost surely, 2^13553500331 is an apocalyptic number.

13553500331 is a deficient number, since it is larger than the sum of its proper divisors (1936214341).

13553500331 is an equidigital number, since it uses as much as digits as its factorization.

13553500331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936214340.

The product of its (nonzero) digits is 10125, while the sum is 29.

The spelling of 13553500331 in words is "thirteen billion, five hundred fifty-three million, five hundred thousand, three hundred thirty-one".