13669425 has 96 divisors (see below), whose sum is σ = 31426560. Its totient is φ = 5659200.

The previous prime is 13669423. The next prime is 13669459. The reversal of 13669425 is 52496631.

It is a happy number.

13669425 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13669425 - 2¹ = 13669423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13669425.

It is not an unprimeable number, because it can be changed into a prime (13669423) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 51844 + ... + 52106.

It is an arithmetic number, because the mean of its divisors is an integer number (327360).

Almost surely, 2^13669425 is an apocalyptic number.

13669425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13669425 is an abundant number, since it is smaller than the sum of its proper divisors (17757135).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13669425 is a wasteful number, since it uses less digits than its factorization.

13669425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300 (or 289 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 13669425 is about 3697.2185491258. The cubic root of 13669425 is about 239.1021137738.

The spelling of 13669425 in words is "thirteen million, six hundred sixty-nine thousand, four hundred twenty-five".