25169265 has 64 divisors (see below), whose sum is σ = 51736320. Its totient is φ = 11473920.

The previous prime is 25169237. The next prime is 25169293. The reversal of 25169265 is 56296152.

It is an interprime number because it is at equal distance from previous prime (25169237) and next prime (25169293).

It is not a de Polignac number, because 25169265 - 2⁶ = 25169201 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24747 + ... + 25743.

It is an arithmetic number, because the mean of its divisors is an integer number (808380).

Almost surely, 2^25169265 is an apocalyptic number.

It is an amenable number.

25169265 is an abundant number, since it is smaller than the sum of its proper divisors (26567055).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25169265 is a wasteful number, since it uses less digits than its factorization.

25169265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039 (or 1033 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 25169265 is about 5016.8979459423. The cubic root of 25169265 is about 293.0602018818.

It can be divided in two parts, 2516 and 9265, that added together give a triangular number (11781 = T₁₅₃).

The spelling of 25169265 in words is "twenty-five million, one hundred sixty-nine thousand, two hundred sixty-five".