25956265969 has 8 divisors (see below), whose sum is σ = 27298068480. Its totient is φ = 24632235936.

The previous prime is 25956265967. The next prime is 25956266003. The reversal of 25956265969 is 96956265952.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25956265969 - 2¹ = 25956265967 is a prime.

It is a super-2 number, since 2×25956265969² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25956265969.

It is not an unprimeable number, because it can be changed into a prime (25956265963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4440124 + ... + 4445965.

It is an arithmetic number, because the mean of its divisors is an integer number (3412258560).

Almost surely, 2^25956265969 is an apocalyptic number.

It is an amenable number.

25956265969 is a deficient number, since it is larger than the sum of its proper divisors (1341802511).

25956265969 is a wasteful number, since it uses less digits than its factorization.

25956265969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8886239.

The product of its digits is 78732000, while the sum is 64.

The spelling of 25956265969 in words is "twenty-five billion, nine hundred fifty-six million, two hundred sixty-five thousand, nine hundred sixty-nine".