25575697 has 12 divisors (see below), whose sum is σ = 30132480. Its totient is φ = 21641256.

The previous prime is 25575689. The next prime is 25575721. The reversal of 25575697 is 79657552.

It is not a de Polignac number, because 25575697 - 2³ = 25575689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25575607) 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, 568 + ... + 7174.

It is an arithmetic number, because the mean of its divisors is an integer number (2511040).

Almost surely, 2^25575697 is an apocalyptic number.

It is an amenable number.

25575697 is a deficient number, since it is larger than the sum of its proper divisors (4556783).

25575697 is an equidigital number, since it uses as much as digits as its factorization.

25575697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6700 (or 6693 counting only the distinct ones).

The product of its digits is 661500, while the sum is 46.

The square root of 25575697 is about 5057.2420349436. The cubic root of 25575697 is about 294.6292268029.

The spelling of 25575697 in words is "twenty-five million, five hundred seventy-five thousand, six hundred ninety-seven".