13236709825 has 12 divisors (see below), whose sum is σ = 16558776108. Its totient is φ = 10495654400.

The previous prime is 13236709793. The next prime is 13236709861. The reversal of 13236709825 is 52890763231.

It can be written as a sum of positive squares in 6 ways, for example, as 821624896 + 12415084929 = 28664^2 + 111423^2 .

It is not a de Polignac number, because 13236709825 - 2⁵ = 13236709793 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2339956 + ... + 2345605.

It is an arithmetic number, because the mean of its divisors is an integer number (1379898009).

Almost surely, 2^13236709825 is an apocalyptic number.

It is an amenable number.

13236709825 is a deficient number, since it is larger than the sum of its proper divisors (3322066283).

13236709825 is a wasteful number, since it uses less digits than its factorization.

13236709825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4685684 (or 4685679 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 13236709825 in words is "thirteen billion, two hundred thirty-six million, seven hundred nine thousand, eight hundred twenty-five".