25275015137 has 2 divisors, whose sum is σ = 25275015138. Its totient is φ = 25275015136.

The previous prime is 25275015091. The next prime is 25275015223. The reversal of 25275015137 is 73151057252.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17093993536 + 8181021601 = 130744^2 + 90449^2 .

It is a cyclic number.

It is not a de Polignac number, because 25275015137 - 2¹⁰ = 25275014113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25275015137.

It is not a weakly prime, because it can be changed into another prime (25275012137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12637507568 + 12637507569.

It is an arithmetic number, because the mean of its divisors is an integer number (12637507569).

Almost surely, 2^25275015137 is an apocalyptic number.

It is an amenable number.

25275015137 is a deficient number, since it is larger than the sum of its proper divisors (1).

25275015137 is an equidigital number, since it uses as much as digits as its factorization.

25275015137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 73500, while the sum is 38.

The spelling of 25275015137 in words is "twenty-five billion, two hundred seventy-five million, fifteen thousand, one hundred thirty-seven".