25442265 has 16 divisors (see below), whose sum is σ = 40936896. Its totient is φ = 13492800.

The previous prime is 25442233. The next prime is 25442269. The reversal of 25442265 is 56224452.

It is a happy number.

It is not a de Polignac number, because 25442265 - 2⁵ = 25442233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25442269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1971 + ... + 7400.

It is an arithmetic number, because the mean of its divisors is an integer number (2558556).

Almost surely, 2^25442265 is an apocalyptic number.

It is an amenable number.

25442265 is a deficient number, since it is larger than the sum of its proper divisors (15494631).

25442265 is a wasteful number, since it uses less digits than its factorization.

25442265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9560.

The product of its digits is 19200, while the sum is 30.

The square root of 25442265 is about 5044.0326129001. The cubic root of 25442265 is about 294.1159591629.

The spelling of 25442265 in words is "twenty-five million, four hundred forty-two thousand, two hundred sixty-five".