25989000097 has 4 divisors (see below), whose sum is σ = 26001823536. Its totient is φ = 25976176660.

The previous prime is 25989000077. The next prime is 25989000119. The reversal of 25989000097 is 79000098952.

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 25989000097 - 2⁷ = 25988999969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25989000097.

It is not an unprimeable number, because it can be changed into a prime (25989000077) 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, 6408679 + ... + 6412732.

It is an arithmetic number, because the mean of its divisors is an integer number (6500455884).

Almost surely, 2^25989000097 is an apocalyptic number.

It is an amenable number.

25989000097 is a deficient number, since it is larger than the sum of its proper divisors (12823439).

25989000097 is a wasteful number, since it uses less digits than its factorization.

25989000097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12823438.

The product of its (nonzero) digits is 408240, while the sum is 49.

It can be divided in two parts, 259 and 89000097, that added together give a square (89000356 = 9434²).

The spelling of 25989000097 in words is "twenty-five billion, nine hundred eighty-nine million, ninety-seven", and thus it is an aban number.