25342559441 has 2 divisors, whose sum is σ = 25342559442. Its totient is φ = 25342559440.

The previous prime is 25342559383. The next prime is 25342559449. The reversal of 25342559441 is 14495524352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24348481600 + 994077841 = 156040^2 + 31529^2 .

It is a cyclic number.

It is not a de Polignac number, because 25342559441 - 2³⁴ = 8162690257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25342559392 and 25342559401.

It is not a weakly prime, because it can be changed into another prime (25342559449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12671279720 + 12671279721.

It is an arithmetic number, because the mean of its divisors is an integer number (12671279721).

Almost surely, 2^25342559441 is an apocalyptic number.

It is an amenable number.

25342559441 is a deficient number, since it is larger than the sum of its proper divisors (1).

25342559441 is an equidigital number, since it uses as much as digits as its factorization.

25342559441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864000, while the sum is 44.

The spelling of 25342559441 in words is "twenty-five billion, three hundred forty-two million, five hundred fifty-nine thousand, four hundred forty-one".