25239345 has 16 divisors (see below), whose sum is σ = 40704000. Its totient is φ = 13353984.

The previous prime is 25239343. The next prime is 25239397. The reversal of 25239345 is 54393252.

It is not a de Polignac number, because 25239345 - 2¹ = 25239343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25239343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4720 + ... + 8529.

It is an arithmetic number, because the mean of its divisors is an integer number (2544000).

Almost surely, 2^25239345 is an apocalyptic number.

It is an amenable number.

25239345 is a deficient number, since it is larger than the sum of its proper divisors (15464655).

25239345 is a wasteful number, since it uses less digits than its factorization.

25239345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13384.

The product of its digits is 32400, while the sum is 33.

The square root of 25239345 is about 5023.8774865635. The cubic root of 25239345 is about 293.3319437205.

The spelling of 25239345 in words is "twenty-five million, two hundred thirty-nine thousand, three hundred forty-five".