25788889 has 8 divisors (see below), whose sum is σ = 30269888. Its totient is φ = 21507120.

The previous prime is 25788857. The next prime is 25788913. The reversal of 25788889 is 98888752.

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 25788889 - 2⁵ = 25788857 is a prime.

It is a super-3 number, since 3×25788889³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (25788689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49527 + ... + 50044.

It is an arithmetic number, because the mean of its divisors is an integer number (3783736).

Almost surely, 2^25788889 is an apocalyptic number.

It is an amenable number.

25788889 is a deficient number, since it is larger than the sum of its proper divisors (4480999).

25788889 is an equidigital number, since it uses as much as digits as its factorization.

25788889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99615.

The product of its digits is 2580480, while the sum is 55.

The square root of 25788889 is about 5078.2761839034. The cubic root of 25788889 is about 295.4456120921.

The spelling of 25788889 in words is "twenty-five million, seven hundred eighty-eight thousand, eight hundred eighty-nine".