25989265023 has 16 divisors (see below), whose sum is σ = 35318592000. Its totient is φ = 16993287584.

The previous prime is 25989265019. The next prime is 25989265031. The reversal of 25989265023 is 32056298952.

It is a cyclic number.

It is not a de Polignac number, because 25989265023 - 2² = 25989265019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25989265123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 449590 + ... + 504092.

It is an arithmetic number, because the mean of its divisors is an integer number (2207412000).

Almost surely, 2^25989265023 is an apocalyptic number.

25989265023 is a deficient number, since it is larger than the sum of its proper divisors (9329326977).

25989265023 is a wasteful number, since it uses less digits than its factorization.

25989265023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57558.

The product of its (nonzero) digits is 2332800, while the sum is 51.

The spelling of 25989265023 in words is "twenty-five billion, nine hundred eighty-nine million, two hundred sixty-five thousand, twenty-three".