25204432511 has 2 divisors, whose sum is σ = 25204432512. Its totient is φ = 25204432510.

The previous prime is 25204432439. The next prime is 25204432529. The reversal of 25204432511 is 11523440252.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25204432511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25204432711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12602216255 + 12602216256.

It is an arithmetic number, because the mean of its divisors is an integer number (12602216256).

Almost surely, 2^25204432511 is an apocalyptic number.

25204432511 is a deficient number, since it is larger than the sum of its proper divisors (1).

25204432511 is an equidigital number, since it uses as much as digits as its factorization.

25204432511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 25204432511 its reverse (11523440252), we get a palindrome (36727872763).

The spelling of 25204432511 in words is "twenty-five billion, two hundred four million, four hundred thirty-two thousand, five hundred eleven".