25933219439 has 2 divisors, whose sum is σ = 25933219440. Its totient is φ = 25933219438.

The previous prime is 25933219393. The next prime is 25933219447. The reversal of 25933219439 is 93491233952.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25933219439 - 2⁸ = 25933219183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25933219639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12966609719 + 12966609720.

It is an arithmetic number, because the mean of its divisors is an integer number (12966609720).

Almost surely, 2^25933219439 is an apocalyptic number.

25933219439 is a deficient number, since it is larger than the sum of its proper divisors (1).

25933219439 is an equidigital number, since it uses as much as digits as its factorization.

25933219439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1574640, while the sum is 50.

The spelling of 25933219439 in words is "twenty-five billion, nine hundred thirty-three million, two hundred nineteen thousand, four hundred thirty-nine".