25984789 has 8 divisors (see below), whose sum is σ = 28401408. Its totient is φ = 23666880.

The previous prime is 25984781. The next prime is 25984801. The reversal of 25984789 is 98748952.

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 25984789 - 2³ = 25984781 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 (25984781) 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, 24127 + ... + 25180.

It is an arithmetic number, because the mean of its divisors is an integer number (3550176).

Almost surely, 2^25984789 is an apocalyptic number.

It is an amenable number.

25984789 is a deficient number, since it is larger than the sum of its proper divisors (2416619).

25984789 is a wasteful number, since it uses less digits than its factorization.

25984789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49355.

The product of its digits is 1451520, while the sum is 52.

The square root of 25984789 is about 5097.5277341080. The cubic root of 25984789 is about 296.1918230993.

The spelling of 25984789 in words is "twenty-five million, nine hundred eighty-four thousand, seven hundred eighty-nine".