25245343999 has 2 divisors, whose sum is σ = 25245344000. Its totient is φ = 25245343998.

The previous prime is 25245343979. The next prime is 25245344009. The reversal of 25245343999 is 99934354252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25245343999 - 2¹¹ = 25245341951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25245343979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12622671999 + 12622672000.

It is an arithmetic number, because the mean of its divisors is an integer number (12622672000).

Almost surely, 2^25245343999 is an apocalyptic number.

25245343999 is a deficient number, since it is larger than the sum of its proper divisors (1).

25245343999 is an equidigital number, since it uses as much as digits as its factorization.

25245343999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10497600, while the sum is 55.

The spelling of 25245343999 in words is "twenty-five billion, two hundred forty-five million, three hundred forty-three thousand, nine hundred ninety-nine".