63725425 has 12 divisors (see below), whose sum is σ = 79645696. Its totient is φ = 50576400.

The previous prime is 63725393. The next prime is 63725437. The reversal of 63725425 is 52452736.

It is not a de Polignac number, because 63725425 - 2⁵ = 63725393 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6861 + ... + 13210.

Almost surely, 2^63725425 is an apocalyptic number.

It is an amenable number.

63725425 is a deficient number, since it is larger than the sum of its proper divisors (15920271).

63725425 is a wasteful number, since it uses less digits than its factorization.

63725425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20208 (or 20203 counting only the distinct ones).

The product of its digits is 50400, while the sum is 34.

The square root of 63725425 is about 7982.8206167996. The cubic root of 63725425 is about 399.4271487452.

It can be divided in two parts, 637 and 25425, that added together give a palindrome (26062).

The spelling of 63725425 in words is "sixty-three million, seven hundred twenty-five thousand, four hundred twenty-five".