25460645 has 24 divisors (see below), whose sum is σ = 37637784. Its totient is φ = 16429056.

The previous prime is 25460623. The next prime is 25460651. The reversal of 25460645 is 54606452.

It can be written as a sum of positive squares in 4 ways, for example, as 5764801 + 19695844 = 2401^2 + 4438^2 .

It is a de Polignac number, because none of the positive numbers 2^k-25460645 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1109 + ... + 7221.

It is an arithmetic number, because the mean of its divisors is an integer number (1568241).

Almost surely, 2^25460645 is an apocalyptic number.

It is an amenable number.

25460645 is a deficient number, since it is larger than the sum of its proper divisors (12177139).

25460645 is a wasteful number, since it uses less digits than its factorization.

25460645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6149 (or 6142 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 25460645 is about 5045.8542388777. The cubic root of 25460645 is about 294.1867671941.

The spelling of 25460645 in words is "twenty-five million, four hundred sixty thousand, six hundred forty-five".