13253533625 has 16 divisors (see below), whose sum is σ = 17513378064. Its totient is φ = 9979129600.

The previous prime is 13253533621. The next prime is 13253533627. The reversal of 13253533625 is 52633535231.

It can be written as a sum of positive squares in 8 ways, for example, as 533979664 + 12719553961 = 23108^2 + 112781^2 .

It is not a de Polignac number, because 13253533625 - 2² = 13253533621 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13253533621) 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, 3116354 + ... + 3120603.

It is an arithmetic number, because the mean of its divisors is an integer number (1094586129).

Almost surely, 2^13253533625 is an apocalyptic number.

It is an amenable number.

13253533625 is a deficient number, since it is larger than the sum of its proper divisors (4259844439).

13253533625 is an equidigital number, since it uses as much as digits as its factorization.

13253533625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6236989 (or 6236979 counting only the distinct ones).

The product of its digits is 243000, while the sum is 38.

The spelling of 13253533625 in words is "thirteen billion, two hundred fifty-three million, five hundred thirty-three thousand, six hundred twenty-five".