25052439 has 16 divisors (see below), whose sum is σ = 34232832. Its totient is φ = 16291968.

The previous prime is 25052437. The next prime is 25052449. The reversal of 25052439 is 93425052.

It is not a de Polignac number, because 25052439 - 2¹ = 25052437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25052437) 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, 22162 + ... + 23264.

It is an arithmetic number, because the mean of its divisors is an integer number (2139552).

Almost surely, 2^25052439 is an apocalyptic number.

25052439 is a deficient number, since it is larger than the sum of its proper divisors (9180393).

25052439 is a wasteful number, since it uses less digits than its factorization.

25052439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 25052439 is about 5005.2411530315. The cubic root of 25052439 is about 292.6060744651.

The spelling of 25052439 in words is "twenty-five million, fifty-two thousand, four hundred thirty-nine".