25896095557 has 2 divisors, whose sum is σ = 25896095558. Its totient is φ = 25896095556.

The previous prime is 25896095527. The next prime is 25896095651. The reversal of 25896095557 is 75559069852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25789469281 + 106626276 = 160591^2 + 10326^2 .

It is a cyclic number.

It is not a de Polignac number, because 25896095557 - 2¹⁵ = 25896062789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25896095495 and 25896095504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25896095527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12948047778 + 12948047779.

It is an arithmetic number, because the mean of its divisors is an integer number (12948047779).

Almost surely, 2^25896095557 is an apocalyptic number.

It is an amenable number.

25896095557 is a deficient number, since it is larger than the sum of its proper divisors (1).

25896095557 is an equidigital number, since it uses as much as digits as its factorization.

25896095557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020000, while the sum is 61.

The spelling of 25896095557 in words is "twenty-five billion, eight hundred ninety-six million, ninety-five thousand, five hundred fifty-seven".