25971127253 has 2 divisors, whose sum is σ = 25971127254. Its totient is φ = 25971127252.

The previous prime is 25971127243. The next prime is 25971127297. The reversal of 25971127253 is 35272117952.

It is an a-pointer prime, because the next prime (25971127297) can be obtained adding 25971127253 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25113691729 + 857435524 = 158473^2 + 29282^2 .

It is a cyclic number.

It is not a de Polignac number, because 25971127253 - 2²⁰ = 25970078677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25971127213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12985563626 + 12985563627.

It is an arithmetic number, because the mean of its divisors is an integer number (12985563627).

Almost surely, 2^25971127253 is an apocalyptic number.

It is an amenable number.

25971127253 is a deficient number, since it is larger than the sum of its proper divisors (1).

25971127253 is an equidigital number, since it uses as much as digits as its factorization.

25971127253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 264600, while the sum is 44.

The spelling of 25971127253 in words is "twenty-five billion, nine hundred seventy-one million, one hundred twenty-seven thousand, two hundred fifty-three".