25905808873 has 24 divisors (see below), whose sum is σ = 30258627840. Its totient is φ = 22114350720.

The previous prime is 25905808829. The next prime is 25905808879. The reversal of 25905808873 is 37880850952.

It is not a de Polignac number, because 25905808873 - 2¹⁷ = 25905677801 is a prime.

It is a super-2 number, since 2×25905808873² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25905808879) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19033713 + ... + 19035073.

It is an arithmetic number, because the mean of its divisors is an integer number (1260776160).

Almost surely, 2^25905808873 is an apocalyptic number.

It is an amenable number.

25905808873 is a deficient number, since it is larger than the sum of its proper divisors (4352818967).

25905808873 is a wasteful number, since it uses less digits than its factorization.

25905808873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2677 (or 2670 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 55.

The spelling of 25905808873 in words is "twenty-five billion, nine hundred five million, eight hundred eight thousand, eight hundred seventy-three".