25335239 has 4 divisors (see below), whose sum is σ = 25366920. Its totient is φ = 25303560.

The previous prime is 25335203. The next prime is 25335257. The reversal of 25335239 is 93253352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25335239 - 2¹² = 25331143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25335439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14609 + ... + 16250.

It is an arithmetic number, because the mean of its divisors is an integer number (6341730).

Almost surely, 2^25335239 is an apocalyptic number.

25335239 is a deficient number, since it is larger than the sum of its proper divisors (31681).

25335239 is an equidigital number, since it uses as much as digits as its factorization.

25335239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31680.

The product of its digits is 24300, while the sum is 32.

The square root of 25335239 is about 5033.4122620743. The cubic root of 25335239 is about 293.7029679341.

The spelling of 25335239 in words is "twenty-five million, three hundred thirty-five thousand, two hundred thirty-nine".