13257678225 has 48 divisors (see below), whose sum is σ = 25318647360. Its totient is φ = 6049843200.

The previous prime is 13257678211. The next prime is 13257678299. The reversal of 13257678225 is 52287675231.

It is not a de Polignac number, because 13257678225 - 2⁷ = 13257678097 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 458620 + ... + 486669.

It is an arithmetic number, because the mean of its divisors is an integer number (527471820).

Almost surely, 2^13257678225 is an apocalyptic number.

13257678225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13257678225 is a deficient number, since it is larger than the sum of its proper divisors (12060969135).

13257678225 is a wasteful number, since it uses less digits than its factorization.

13257678225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945330 (or 945325 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 48.

The spelling of 13257678225 in words is "thirteen billion, two hundred fifty-seven million, six hundred seventy-eight thousand, two hundred twenty-five".