25204432243 has 2 divisors, whose sum is σ = 25204432244. Its totient is φ = 25204432242.

The previous prime is 25204432199. The next prime is 25204432261. The reversal of 25204432243 is 34223440252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25204432243 - 2⁹ = 25204431731 is a prime.

It is a super-2 number, since 2×25204432243² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25204432343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12602216121 + 12602216122.

It is an arithmetic number, because the mean of its divisors is an integer number (12602216122).

Almost surely, 2^25204432243 is an apocalyptic number.

25204432243 is a deficient number, since it is larger than the sum of its proper divisors (1).

25204432243 is an equidigital number, since it uses as much as digits as its factorization.

25204432243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 31.

Adding to 25204432243 its reverse (34223440252), we get a palindrome (59427872495).

The spelling of 25204432243 in words is "twenty-five billion, two hundred four million, four hundred thirty-two thousand, two hundred forty-three".