25000657 has 12 divisors (see below), whose sum is σ = 27751248. Its totient is φ = 22503800.

The previous prime is 25000649. The next prime is 25000669. The reversal of 25000657 is 75600052.

It is a happy number.

It is not a de Polignac number, because 25000657 - 2³ = 25000649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25000607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11982 + ... + 13912.

It is an arithmetic number, because the mean of its divisors is an integer number (2312604).

Almost surely, 2^25000657 is an apocalyptic number.

It is an amenable number.

25000657 is a deficient number, since it is larger than the sum of its proper divisors (2750591).

25000657 is a wasteful number, since it uses less digits than its factorization.

25000657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2060 (or 2049 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 25000657 is about 5000.0656995684. The cubic root of 25000657 is about 292.4043352384.

The spelling of 25000657 in words is "twenty-five million, six hundred fifty-seven", and thus it is an aban number.