25930205998 has 16 divisors (see below), whose sum is σ = 40156913664. Its totient is φ = 12544712280.

The previous prime is 25930205993. The next prime is 25930206079. The reversal of 25930205998 is 89950203952.

It is a super-3 number, since 3×25930205998³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25930205993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361911 + ... + 427597.

It is an arithmetic number, because the mean of its divisors is an integer number (2509807104).

Almost surely, 2^25930205998 is an apocalyptic number.

25930205998 is a deficient number, since it is larger than the sum of its proper divisors (14226707666).

25930205998 is a wasteful number, since it uses less digits than its factorization.

25930205998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72087.

The product of its (nonzero) digits is 1749600, while the sum is 52.

The spelling of 25930205998 in words is "twenty-five billion, nine hundred thirty million, two hundred five thousand, nine hundred ninety-eight".