13251005540 has 24 divisors (see below), whose sum is σ = 27835184832. Its totient is φ = 5298864480.

The previous prime is 13251005533. The next prime is 13251005549. The reversal of 13251005540 is 4550015231.

It is a super-2 number, since 2×13251005540² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13251005549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24134 + ... + 164573.

It is an arithmetic number, because the mean of its divisors is an integer number (1159799368).

Almost surely, 2^13251005540 is an apocalyptic number.

13251005540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13251005540 is an abundant number, since it is smaller than the sum of its proper divisors (14584179292).

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

13251005540 is a wasteful number, since it uses less digits than its factorization.

13251005540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192227 (or 192225 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The spelling of 13251005540 in words is "thirteen billion, two hundred fifty-one million, five thousand, five hundred forty".