25723416253 has 2 divisors, whose sum is σ = 25723416254. Its totient is φ = 25723416252.

The previous prime is 25723416239. The next prime is 25723416283. The reversal of 25723416253 is 35261432752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25032935524 + 690480729 = 158218^2 + 26277^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25723416253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25723416233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12861708126 + 12861708127.

It is an arithmetic number, because the mean of its divisors is an integer number (12861708127).

Almost surely, 2^25723416253 is an apocalyptic number.

It is an amenable number.

25723416253 is a deficient number, since it is larger than the sum of its proper divisors (1).

25723416253 is an equidigital number, since it uses as much as digits as its factorization.

25723416253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 302400, while the sum is 40.

The spelling of 25723416253 in words is "twenty-five billion, seven hundred twenty-three million, four hundred sixteen thousand, two hundred fifty-three".