25984283945 has 8 divisors (see below), whose sum is σ = 31200675144. Its totient is φ = 20774404224.

The previous prime is 25984283933. The next prime is 25984283953. The reversal of 25984283945 is 54938248952.

It can be written as a sum of positive squares in 4 ways, for example, as 1654211584 + 24330072361 = 40672^2 + 155981^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 25984283945 - 2¹⁶ = 25984218409 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1619084 + ... + 1635053.

It is an arithmetic number, because the mean of its divisors is an integer number (3900084393).

Almost surely, 2^25984283945 is an apocalyptic number.

It is an amenable number.

25984283945 is a deficient number, since it is larger than the sum of its proper divisors (5216391199).

25984283945 is a wasteful number, since it uses less digits than its factorization.

25984283945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3255739.

The product of its digits is 24883200, while the sum is 59.

The spelling of 25984283945 in words is "twenty-five billion, nine hundred eighty-four million, two hundred eighty-three thousand, nine hundred forty-five".