25238238299 has 2 divisors, whose sum is σ = 25238238300. Its totient is φ = 25238238298.

The previous prime is 25238238287. The next prime is 25238238317. The reversal of 25238238299 is 99283283252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25238238299 - 2⁴ = 25238238283 is a prime.

It is a super-2 number, since 2×25238238299² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25238238299.

It is not a weakly prime, because it can be changed into another prime (25238238209) 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, 12619119149 + 12619119150.

It is an arithmetic number, because the mean of its divisors is an integer number (12619119150).

Almost surely, 2^25238238299 is an apocalyptic number.

25238238299 is a deficient number, since it is larger than the sum of its proper divisors (1).

25238238299 is an equidigital number, since it uses as much as digits as its factorization.

25238238299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3732480, while the sum is 53.

The spelling of 25238238299 in words is "twenty-five billion, two hundred thirty-eight million, two hundred thirty-eight thousand, two hundred ninety-nine".