25027622461 has 2 divisors, whose sum is σ = 25027622462. Its totient is φ = 25027622460.

The previous prime is 25027622441. The next prime is 25027622489. The reversal of 25027622461 is 16422672052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17090594361 + 7937028100 = 130731^2 + 89090^2 .

It is a cyclic number.

It is not a de Polignac number, because 25027622461 - 2¹⁷ = 25027491389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25027622461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25027622441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12513811230 + 12513811231.

It is an arithmetic number, because the mean of its divisors is an integer number (12513811231).

Almost surely, 2^25027622461 is an apocalyptic number.

It is an amenable number.

25027622461 is a deficient number, since it is larger than the sum of its proper divisors (1).

25027622461 is an equidigital number, since it uses as much as digits as its factorization.

25027622461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 37.

The spelling of 25027622461 in words is "twenty-five billion, twenty-seven million, six hundred twenty-two thousand, four hundred sixty-one".