25042775 has 12 divisors (see below), whose sum is σ = 31715232. Its totient is φ = 19607040.

The previous prime is 25042733. The next prime is 25042789. The reversal of 25042775 is 57724052.

It is not a de Polignac number, because 25042775 - 2⁸ = 25042519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9482 + ... + 11831.

It is an arithmetic number, because the mean of its divisors is an integer number (2642936).

Almost surely, 2^25042775 is an apocalyptic number.

25042775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25042775 is a deficient number, since it is larger than the sum of its proper divisors (6672457).

25042775 is a wasteful number, since it uses less digits than its factorization.

25042775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21370 (or 21365 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 25042775 is about 5004.2756718630. The cubic root of 25042775 is about 292.5684452774.

The spelling of 25042775 in words is "twenty-five million, forty-two thousand, seven hundred seventy-five".