25413139 has 2 divisors, whose sum is σ = 25413140. Its totient is φ = 25413138.

The previous prime is 25413103. The next prime is 25413217. The reversal of 25413139 is 93131452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25413139 - 2⁹ = 25412627 is a prime.

It is not a weakly prime, because it can be changed into another prime (25413439) 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 as a sum of consecutive naturals, namely, 12706569 + 12706570.

It is an arithmetic number, because the mean of its divisors is an integer number (12706570).

Almost surely, 2^25413139 is an apocalyptic number.

25413139 is a deficient number, since it is larger than the sum of its proper divisors (1).

25413139 is an equidigital number, since it uses as much as digits as its factorization.

25413139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 28.

The square root of 25413139 is about 5041.1446120896. The cubic root of 25413139 is about 294.0036828329.

It can be divided in two parts, 25413 and 139, that added together give a palindrome (25552).

The spelling of 25413139 in words is "twenty-five million, four hundred thirteen thousand, one hundred thirty-nine".