12545725 has 6 divisors (see below), whose sum is σ = 15556730. Its totient is φ = 10036560.

The previous prime is 12545717. The next prime is 12545747. The reversal of 12545725 is 52754521.

It can be written as a sum of positive squares in 3 ways, for example, as 2979076 + 9566649 = 1726^2 + 3093^2 .

It is not a de Polignac number, because 12545725 - 2³ = 12545717 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 250890 + ... + 250939.

Almost surely, 2^12545725 is an apocalyptic number.

It is an amenable number.

12545725 is a deficient number, since it is larger than the sum of its proper divisors (3011005).

12545725 is an equidigital number, since it uses as much as digits as its factorization.

12545725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501839 (or 501834 counting only the distinct ones).

The product of its digits is 14000, while the sum is 31.

The square root of 12545725 is about 3541.9944946315. The cubic root of 12545725 is about 232.3620795297.

The spelling of 12545725 in words is "twelve million, five hundred forty-five thousand, seven hundred twenty-five".