13240653825 has 36 divisors (see below), whose sum is σ = 25465297200. Its totient is φ = 6052868640.

The previous prime is 13240653809. The next prime is 13240653871. The reversal of 13240653825 is 52835604231.

It is a happy number.

It is not a de Polignac number, because 13240653825 - 2⁴ = 13240653809 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1797775 + ... + 1805124.

Almost surely, 2^13240653825 is an apocalyptic number.

13240653825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13240653825 is a deficient number, since it is larger than the sum of its proper divisors (12224643375).

13240653825 is a wasteful number, since it uses less digits than its factorization.

13240653825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3602926 (or 3602914 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 13240653825 in words is "thirteen billion, two hundred forty million, six hundred fifty-three thousand, eight hundred twenty-five".