25166465 has 16 divisors (see below), whose sum is σ = 31017360. Its totient is φ = 19595520.

The previous prime is 25166459. The next prime is 25166503. The reversal of 25166465 is 56466152.

It can be written as a sum of positive squares in 8 ways, for example, as 1117249 + 24049216 = 1057^2 + 4904^2 .

It is a de Polignac number, because none of the positive numbers 2^k-25166465 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32867 + ... + 33623.

It is an arithmetic number, because the mean of its divisors is an integer number (1938585).

Almost surely, 2^25166465 is an apocalyptic number.

It is an amenable number.

25166465 is a deficient number, since it is larger than the sum of its proper divisors (5850895).

25166465 is a wasteful number, since it uses less digits than its factorization.

25166465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932.

The product of its digits is 43200, while the sum is 35.

The square root of 25166465 is about 5016.6188812785. The cubic root of 25166465 is about 293.0493341430.

The spelling of 25166465 in words is "twenty-five million, one hundred sixty-six thousand, four hundred sixty-five".