25239311 has 2 divisors, whose sum is σ = 25239312. Its totient is φ = 25239310.

The previous prime is 25239307. The next prime is 25239337. The reversal of 25239311 is 11393252.

It is an a-pointer prime, because the next prime (25239337) can be obtained adding 25239311 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25239311 - 2² = 25239307 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25299311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12619655 + 12619656.

It is an arithmetic number, because the mean of its divisors is an integer number (12619656).

Almost surely, 2^25239311 is an apocalyptic number.

25239311 is a deficient number, since it is larger than the sum of its proper divisors (1).

25239311 is an equidigital number, since it uses as much as digits as its factorization.

25239311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1620, while the sum is 26.

The square root of 25239311 is about 5023.8741027219. The cubic root of 25239311 is about 293.3318120043.

The spelling of 25239311 in words is "twenty-five million, two hundred thirty-nine thousand, three hundred eleven".