25247339 has 8 divisors (see below), whose sum is σ = 27651120. Its totient is φ = 22909536.

The previous prime is 25247317. The next prime is 25247359. The reversal of 25247339 is 93374252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25247339 - 2⁸ = 25247083 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25247299 and 25247308.

It is not an unprimeable number, because it can be changed into a prime (25247359) 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 7 ways as a sum of consecutive naturals, for example, 15692 + ... + 17225.

It is an arithmetic number, because the mean of its divisors is an integer number (3456390).

Almost surely, 2^25247339 is an apocalyptic number.

25247339 is a deficient number, since it is larger than the sum of its proper divisors (2403781).

25247339 is a wasteful number, since it uses less digits than its factorization.

25247339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32989.

The product of its digits is 45360, while the sum is 35.

The square root of 25247339 is about 5024.6730241877. The cubic root of 25247339 is about 293.3629092366.

The spelling of 25247339 in words is "twenty-five million, two hundred forty-seven thousand, three hundred thirty-nine".