25144225811 has 2 divisors, whose sum is σ = 25144225812. Its totient is φ = 25144225810.

The previous prime is 25144225793. The next prime is 25144225861. The reversal of 25144225811 is 11852244152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25144225811 - 2¹⁸ = 25143963667 is a prime.

It is not a weakly prime, because it can be changed into another prime (25144225861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12572112905 + 12572112906.

It is an arithmetic number, because the mean of its divisors is an integer number (12572112906).

Almost surely, 2^25144225811 is an apocalyptic number.

25144225811 is a deficient number, since it is larger than the sum of its proper divisors (1).

25144225811 is an equidigital number, since it uses as much as digits as its factorization.

25144225811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25600, while the sum is 35.

Adding to 25144225811 its reverse (11852244152), we get a palindrome (36996469963).

The spelling of 25144225811 in words is "twenty-five billion, one hundred forty-four million, two hundred twenty-five thousand, eight hundred eleven".