25196711213 has 2 divisors, whose sum is σ = 25196711214. Its totient is φ = 25196711212.

The previous prime is 25196711201. The next prime is 25196711237. The reversal of 25196711213 is 31211769152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13035473929 + 12161237284 = 114173^2 + 110278^2 .

It is a cyclic number.

It is not a de Polignac number, because 25196711213 - 2⁶ = 25196711149 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25196711273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12598355606 + 12598355607.

It is an arithmetic number, because the mean of its divisors is an integer number (12598355607).

Almost surely, 2^25196711213 is an apocalyptic number.

It is an amenable number.

25196711213 is a deficient number, since it is larger than the sum of its proper divisors (1).

25196711213 is an equidigital number, since it uses as much as digits as its factorization.

25196711213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 38.

The spelling of 25196711213 in words is "twenty-five billion, one hundred ninety-six million, seven hundred eleven thousand, two hundred thirteen".