25867265759 has 4 divisors (see below), whose sum is σ = 25868907216. Its totient is φ = 25865624304.

The previous prime is 25867265719. The next prime is 25867265791. The reversal of 25867265759 is 95756276852.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25867265759 - 2²⁰ = 25866217183 is a prime.

It is a super-3 number, since 3×25867265759³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25867265719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 796859 + ... + 828684.

It is an arithmetic number, because the mean of its divisors is an integer number (6467226804).

Almost surely, 2^25867265759 is an apocalyptic number.

25867265759 is a deficient number, since it is larger than the sum of its proper divisors (1641457).

25867265759 is a wasteful number, since it uses less digits than its factorization.

25867265759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641456.

The product of its digits is 63504000, while the sum is 62.

The spelling of 25867265759 in words is "twenty-five billion, eight hundred sixty-seven million, two hundred sixty-five thousand, seven hundred fifty-nine".