25211424193 has 2 divisors, whose sum is σ = 25211424194. Its totient is φ = 25211424192.

The previous prime is 25211424187. The next prime is 25211424247. The reversal of 25211424193 is 39142411252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20768268544 + 4443155649 = 144112^2 + 66657^2 .

It is a cyclic number.

It is not a de Polignac number, because 25211424193 - 2¹³ = 25211416001 is a prime.

It is not a weakly prime, because it can be changed into another prime (25211424163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12605712096 + 12605712097.

It is an arithmetic number, because the mean of its divisors is an integer number (12605712097).

Almost surely, 2^25211424193 is an apocalyptic number.

It is an amenable number.

25211424193 is a deficient number, since it is larger than the sum of its proper divisors (1).

25211424193 is an equidigital number, since it uses as much as digits as its factorization.

25211424193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 34.

The spelling of 25211424193 in words is "twenty-five billion, two hundred eleven million, four hundred twenty-four thousand, one hundred ninety-three".