25374797837 has 2 divisors, whose sum is σ = 25374797838. Its totient is φ = 25374797836.

The previous prime is 25374797827. The next prime is 25374797843. The reversal of 25374797837 is 73879747352.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23178844516 + 2195953321 = 152246^2 + 46861^2 .

It is a cyclic number.

It is not a de Polignac number, because 25374797837 - 2³⁴ = 8194928653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25374797837.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25374797827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12687398918 + 12687398919.

It is an arithmetic number, because the mean of its divisors is an integer number (12687398919).

Almost surely, 2^25374797837 is an apocalyptic number.

It is an amenable number.

25374797837 is a deficient number, since it is larger than the sum of its proper divisors (1).

25374797837 is an equidigital number, since it uses as much as digits as its factorization.

25374797837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62233920, while the sum is 62.

The spelling of 25374797837 in words is "twenty-five billion, three hundred seventy-four million, seven hundred ninety-seven thousand, eight hundred thirty-seven".