25225865 has 16 divisors (see below), whose sum is σ = 35441280. Its totient is φ = 16874880.

The previous prime is 25225843. The next prime is 25225867. The reversal of 25225865 is 56852252.

It is not a de Polignac number, because 25225865 - 2⁶ = 25225801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (25225867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7355 + ... + 10224.

It is an arithmetic number, because the mean of its divisors is an integer number (2215080).

Almost surely, 2^25225865 is an apocalyptic number.

It is an amenable number.

25225865 is a deficient number, since it is larger than the sum of its proper divisors (10215415).

25225865 is a wasteful number, since it uses less digits than its factorization.

25225865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17632.

The product of its digits is 48000, while the sum is 35.

The square root of 25225865 is about 5022.5357141587. The cubic root of 25225865 is about 293.2797128516.

The spelling of 25225865 in words is "twenty-five million, two hundred twenty-five thousand, eight hundred sixty-five".