25261875899 has 16 divisors (see below), whose sum is σ = 27937566720. Its totient is φ = 22699141920.

The previous prime is 25261875889. The next prime is 25261875907. The reversal of 25261875899 is 99857816252.

It is not a de Polignac number, because 25261875899 - 2³² = 20966908603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25261875869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100307 + ... + 246140.

It is an arithmetic number, because the mean of its divisors is an integer number (1746097920).

Almost surely, 2^25261875899 is an apocalyptic number.

25261875899 is a deficient number, since it is larger than the sum of its proper divisors (2675690821).

25261875899 is a wasteful number, since it uses less digits than its factorization.

25261875899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346610.

The product of its digits is 21772800, while the sum is 62.

The spelling of 25261875899 in words is "twenty-five billion, two hundred sixty-one million, eight hundred seventy-five thousand, eight hundred ninety-nine".