13906625 has 8 divisors (see below), whose sum is σ = 17355624. Its totient is φ = 11125200.

The previous prime is 13906601. The next prime is 13906637. The reversal of 13906625 is 52660931.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 97969 + 13808656 = 313^2 + 3716^2 .

It is not a de Polignac number, because 13906625 - 2¹² = 13902529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13906591 and 13906600.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55502 + ... + 55751.

It is an arithmetic number, because the mean of its divisors is an integer number (2169453).

Almost surely, 2^13906625 is an apocalyptic number.

It is an amenable number.

13906625 is a deficient number, since it is larger than the sum of its proper divisors (3448999).

13906625 is an equidigital number, since it uses as much as digits as its factorization.

13906625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111268 (or 111258 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 13906625 is about 3729.1587523193. The cubic root of 13906625 is about 240.4772044559.

The spelling of 13906625 in words is "thirteen million, nine hundred six thousand, six hundred twenty-five".