14865705625 has 15 divisors (see below), whose sum is σ = 18579995467. Its totient is φ = 11890126000.

The previous prime is 14865705593. The next prime is 14865705629. The reversal of 14865705625 is 52650756841.

The square root of 14865705625 is 121925.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 13807895049 + 1057810576 = 117507^2 + 32524^2 .

It is not a de Polignac number, because 14865705625 - 2⁵ = 14865705593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14865705629) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 3045687 + ... + 3050563.

Almost surely, 2^14865705625 is an apocalyptic number.

14865705625 is the 121925-th square number.

14865705625 is the 60963-rd centered octagonal number.

It is an amenable number.

14865705625 is a deficient number, since it is larger than the sum of its proper divisors (3714289842).

14865705625 is an frugal number, since it uses more digits than its factorization.

14865705625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9774 (or 4882 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 49.

Multiplying 14865705625 by its sum of digits (49), we get a square (728419575625 = 853475²).

The spelling of 14865705625 in words is "fourteen billion, eight hundred sixty-five million, seven hundred five thousand, six hundred twenty-five".