13531140553 has 16 divisors (see below), whose sum is σ = 15532419456. Its totient is φ = 11547020160.

The previous prime is 13531140517. The next prime is 13531140583. The reversal of 13531140553 is 35504113531.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13531140553 is a prime.

It is a super-2 number, since 2×13531140553² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13531140503) 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, 2058450 + ... + 2065012.

It is an arithmetic number, because the mean of its divisors is an integer number (970776216).

Almost surely, 2^13531140553 is an apocalyptic number.

It is an amenable number.

13531140553 is a deficient number, since it is larger than the sum of its proper divisors (2001278903).

13531140553 is an equidigital number, since it uses as much as digits as its factorization.

13531140553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7824.

The product of its (nonzero) digits is 13500, while the sum is 31.

The spelling of 13531140553 in words is "thirteen billion, five hundred thirty-one million, one hundred forty thousand, five hundred fifty-three".