25652975999 has 8 divisors (see below), whose sum is σ = 29548535808. Its totient is φ = 21815128440.

The previous prime is 25652975983. The next prime is 25652976043. The reversal of 25652975999 is 99957925652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25652975999 - 2⁴ = 25652975983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25652975399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14427107 + ... + 14428884.

It is an arithmetic number, because the mean of its divisors is an integer number (3693566976).

Almost surely, 2^25652975999 is an apocalyptic number.

25652975999 is a deficient number, since it is larger than the sum of its proper divisors (3895559809).

25652975999 is a wasteful number, since it uses less digits than its factorization.

25652975999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28856125.

The product of its digits is 137781000, while the sum is 68.

The spelling of 25652975999 in words is "twenty-five billion, six hundred fifty-two million, nine hundred seventy-five thousand, nine hundred ninety-nine".