25088866321 has 4 divisors (see below), whose sum is σ = 25201372672. Its totient is φ = 24976359972.

The previous prime is 25088866289. The next prime is 25088866399. The reversal of 25088866321 is 12366888052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25088866321 - 2⁵ = 25088866289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25088866421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56252841 + ... + 56253286.

It is an arithmetic number, because the mean of its divisors is an integer number (6300343168).

Almost surely, 2^25088866321 is an apocalyptic number.

It is an amenable number.

25088866321 is a deficient number, since it is larger than the sum of its proper divisors (112506351).

25088866321 is a wasteful number, since it uses less digits than its factorization.

25088866321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112506350.

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 25088866321 in words is "twenty-five billion, eighty-eight million, eight hundred sixty-six thousand, three hundred twenty-one".