13995625 has 30 divisors (see below), whose sum is σ = 20388786. Its totient is φ = 9576000.

The previous prime is 13995589. The next prime is 13995629. The reversal of 13995625 is 52659931.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 2893401 + 11102224 = 1701^2 + 3332^2 .

It is not a de Polignac number, because 13995625 - 2⁷ = 13995497 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13995629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 30397 + ... + 30853.

Almost surely, 2^13995625 is an apocalyptic number.

It is an amenable number.

13995625 is a deficient number, since it is larger than the sum of its proper divisors (6393161).

13995625 is an frugal number, since it uses more digits than its factorization.

13995625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491 (or 469 counting only the distinct ones).

The product of its digits is 72900, while the sum is 40.

The square root of 13995625 is about 3741.0727071256. The cubic root of 13995625 is about 240.9891181533.

The spelling of 13995625 in words is "thirteen million, nine hundred ninety-five thousand, six hundred twenty-five".