25950248239 has 2 divisors, whose sum is σ = 25950248240. Its totient is φ = 25950248238.

The previous prime is 25950248173. The next prime is 25950248287. The reversal of 25950248239 is 93284205952.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25950248239 - 2¹⁹ = 25949723951 is a prime.

It is a super-2 number, since 2×25950248239² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25950248192 and 25950248201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25950248839) 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, 12975124119 + 12975124120.

It is an arithmetic number, because the mean of its divisors is an integer number (12975124120).

Almost surely, 2^25950248239 is an apocalyptic number.

25950248239 is a deficient number, since it is larger than the sum of its proper divisors (1).

25950248239 is an equidigital number, since it uses as much as digits as its factorization.

25950248239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1555200, while the sum is 49.

The spelling of 25950248239 in words is "twenty-five billion, nine hundred fifty million, two hundred forty-eight thousand, two hundred thirty-nine".