25457265 has 24 divisors (see below), whose sum is σ = 44304000. Its totient is φ = 13522464.

The previous prime is 25457233. The next prime is 25457281. The reversal of 25457265 is 56275452.

25457265 is a `hidden beast` number, since 25 + 4 + 572 + 65 = 666.

It is not a de Polignac number, because 25457265 - 2⁵ = 25457233 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11736 + ... + 13734.

It is an arithmetic number, because the mean of its divisors is an integer number (1846000).

Almost surely, 2^25457265 is an apocalyptic number.

It is an amenable number.

25457265 is a deficient number, since it is larger than the sum of its proper divisors (18846735).

25457265 is a wasteful number, since it uses less digits than its factorization.

25457265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2293 (or 2290 counting only the distinct ones).

The product of its digits is 84000, while the sum is 36.

The square root of 25457265 is about 5045.5192993388. The cubic root of 25457265 is about 294.1737484708.

The spelling of 25457265 in words is "twenty-five million, four hundred fifty-seven thousand, two hundred sixty-five".