13247425 has 12 divisors (see below), whose sum is σ = 17141760. Its totient is φ = 10136720.

The previous prime is 13247417. The next prime is 13247453. The reversal of 13247425 is 52474231.

It is not a de Polignac number, because 13247425 - 2³ = 13247417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13247393 and 13247402.

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, 10945 + ... + 12094.

It is an arithmetic number, because the mean of its divisors is an integer number (1428480).

Almost surely, 2^13247425 is an apocalyptic number.

It is an amenable number.

13247425 is a deficient number, since it is larger than the sum of its proper divisors (3894335).

13247425 is a wasteful number, since it uses less digits than its factorization.

13247425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23072 (or 23067 counting only the distinct ones).

The product of its digits is 6720, while the sum is 28.

The square root of 13247425 is about 3639.7012240018. The cubic root of 13247425 is about 236.6158446273.

It can be divided in two parts, 1 and 3247425, that added together give a triangular number (3247426 = T₂₅₄₈).

The spelling of 13247425 in words is "thirteen million, two hundred forty-seven thousand, four hundred twenty-five".