13422425 has 12 divisors (see below), whose sum is σ = 16695360. Its totient is φ = 10704720.

The previous prime is 13422421. The next prime is 13422433. The reversal of 13422425 is 52422431.

It is a happy number.

It is not a de Polignac number, because 13422425 - 2² = 13422421 is a prime.

It is a super-2 number, since 2×13422425² = 360322985761250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13422425.

It is not an unprimeable number, because it can be changed into a prime (13422421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10364 + ... + 11586.

It is an arithmetic number, because the mean of its divisors is an integer number (1391280).

Almost surely, 2^13422425 is an apocalyptic number.

It is an amenable number.

13422425 is a deficient number, since it is larger than the sum of its proper divisors (3272935).

13422425 is a wasteful number, since it uses less digits than its factorization.

13422425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1672 (or 1667 counting only the distinct ones).

The product of its digits is 1920, while the sum is 23.

The square root of 13422425 is about 3663.6627847006. The cubic root of 13422425 is about 237.6531975587.

Adding to 13422425 its reverse (52422431), we get a palindrome (65844856).

The spelling of 13422425 in words is "thirteen million, four hundred twenty-two thousand, four hundred twenty-five".