25242020311 has 2 divisors, whose sum is σ = 25242020312. Its totient is φ = 25242020310.

The previous prime is 25242020303. The next prime is 25242020317. The reversal of 25242020311 is 11302024252.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25242020311 - 2³ = 25242020303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25242020317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12621010155 + 12621010156.

It is an arithmetic number, because the mean of its divisors is an integer number (12621010156).

Almost surely, 2^25242020311 is an apocalyptic number.

25242020311 is a deficient number, since it is larger than the sum of its proper divisors (1).

25242020311 is an equidigital number, since it uses as much as digits as its factorization.

25242020311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 25242020311 its reverse (11302024252), we get a palindrome (36544044563).

The spelling of 25242020311 in words is "twenty-five billion, two hundred forty-two million, twenty thousand, three hundred eleven".