25414625539 has 2 divisors, whose sum is σ = 25414625540. Its totient is φ = 25414625538.

The previous prime is 25414625521. The next prime is 25414625543. The reversal of 25414625539 is 93552641452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25414625539 - 2¹⁷ = 25414494467 is a prime.

It is not a weakly prime, because it can be changed into another prime (25414625519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12707312769 + 12707312770.

It is an arithmetic number, because the mean of its divisors is an integer number (12707312770).

Almost surely, 2^25414625539 is an apocalyptic number.

25414625539 is a deficient number, since it is larger than the sum of its proper divisors (1).

25414625539 is an equidigital number, since it uses as much as digits as its factorization.

25414625539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296000, while the sum is 46.

The spelling of 25414625539 in words is "twenty-five billion, four hundred fourteen million, six hundred twenty-five thousand, five hundred thirty-nine".