13155425 has 24 divisors (see below), whose sum is σ = 17248896. Its totient is φ = 9933440.

The previous prime is 13155421. The next prime is 13155427. The reversal of 13155425 is 52455131.

It is not a de Polignac number, because 13155425 - 2² = 13155421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13155394 and 13155403.

It is not an unprimeable number, because it can be changed into a prime (13155421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78692 + ... + 78858.

It is an arithmetic number, because the mean of its divisors is an integer number (718704).

Almost surely, 2^13155425 is an apocalyptic number.

It is an amenable number.

13155425 is a deficient number, since it is larger than the sum of its proper divisors (4093471).

13155425 is a wasteful number, since it uses less digits than its factorization.

13155425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337 (or 332 counting only the distinct ones).

The product of its digits is 3000, while the sum is 26.

The square root of 13155425 is about 3627.0408048435. The cubic root of 13155425 is about 236.0668260914.

The spelling of 13155425 in words is "thirteen million, one hundred fifty-five thousand, four hundred twenty-five".