25752239 has 16 divisors (see below), whose sum is σ = 27871200. Its totient is φ = 23721984.

The previous prime is 25752217. The next prime is 25752241. The reversal of 25752239 is 93225752.

It is a cyclic number.

It is not a de Polignac number, because 25752239 - 2⁸ = 25751983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25752199 and 25752208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25752269) 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, 163949 + ... + 164105.

It is an arithmetic number, because the mean of its divisors is an integer number (1741950).

Almost surely, 2^25752239 is an apocalyptic number.

25752239 is a deficient number, since it is larger than the sum of its proper divisors (2118961).

25752239 is a wasteful number, since it uses less digits than its factorization.

25752239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362.

The product of its digits is 37800, while the sum is 35.

The square root of 25752239 is about 5074.6663929760. Note that the first 3 decimals coincide. The cubic root of 25752239 is about 295.3055877687.

The spelling of 25752239 in words is "twenty-five million, seven hundred fifty-two thousand, two hundred thirty-nine".