25682560469 has 2 divisors, whose sum is σ = 25682560470. Its totient is φ = 25682560468.

The previous prime is 25682560439. The next prime is 25682560487. The reversal of 25682560469 is 96406528652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19512457969 + 6170102500 = 139687^2 + 78550^2 .

It is a cyclic number.

It is not a de Polignac number, because 25682560469 - 2¹² = 25682556373 is a prime.

It is a super-2 number, since 2×25682560469² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25682560469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25682560439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12841280234 + 12841280235.

It is an arithmetic number, because the mean of its divisors is an integer number (12841280235).

Almost surely, 2^25682560469 is an apocalyptic number.

It is an amenable number.

25682560469 is a deficient number, since it is larger than the sum of its proper divisors (1).

25682560469 is an equidigital number, since it uses as much as digits as its factorization.

25682560469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6220800, while the sum is 53.

The spelling of 25682560469 in words is "twenty-five billion, six hundred eighty-two million, five hundred sixty thousand, four hundred sixty-nine".