25271763422501 has 2 divisors, whose sum is σ = 25271763422502. Its totient is φ = 25271763422500.

The previous prime is 25271763422497. The next prime is 25271763422527. The reversal of 25271763422501 is 10522436717252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24904351661476 + 367411761025 = 4990426^2 + 606145^2 .

It is a cyclic number.

It is not a de Polignac number, because 25271763422501 - 2² = 25271763422497 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25271763422401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12635881711250 + 12635881711251.

It is an arithmetic number, because the mean of its divisors is an integer number (12635881711251).

Almost surely, 2^{25271763422501} is an apocalyptic number.

It is an amenable number.

25271763422501 is a deficient number, since it is larger than the sum of its proper divisors (1).

25271763422501 is an equidigital number, since it uses as much as digits as its factorization.

25271763422501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1411200, while the sum is 47.

The spelling of 25271763422501 in words is "twenty-five trillion, two hundred seventy-one billion, seven hundred sixty-three million, four hundred twenty-two thousand, five hundred one".