25584643099 has 12 divisors (see below), whose sum is σ = 26043537208. Its totient is φ = 25129116000.

The previous prime is 25584643081. The next prime is 25584643103. The reversal of 25584643099 is 99034648552.

It is not a de Polignac number, because 25584643099 - 2²⁹ = 25047772187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25584640099) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4596292 + ... + 4601854.

Almost surely, 2^25584643099 is an apocalyptic number.

25584643099 is a deficient number, since it is larger than the sum of its proper divisors (458894109).

25584643099 is an frugal number, since it uses more digits than its factorization.

25584643099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6138 (or 5887 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 55.

The spelling of 25584643099 in words is "twenty-five billion, five hundred eighty-four million, six hundred forty-three thousand, ninety-nine".