25677889 has 16 divisors (see below), whose sum is σ = 27744256. Its totient is φ = 23716800.

The previous prime is 25677881. The next prime is 25677901. The reversal of 25677889 is 98877652.

It is not a de Polignac number, because 25677889 - 2³ = 25677881 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (25677881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69784 + ... + 70150.

It is an arithmetic number, because the mean of its divisors is an integer number (1734016).

Almost surely, 2^25677889 is an apocalyptic number.

It is an amenable number.

25677889 is a deficient number, since it is larger than the sum of its proper divisors (2066367).

25677889 is a wasteful number, since it uses less digits than its factorization.

25677889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496.

The product of its digits is 1693440, while the sum is 52.

The square root of 25677889 is about 5067.3354931364. The cubic root of 25677889 is about 295.0211188558.

The spelling of 25677889 in words is "twenty-five million, six hundred seventy-seven thousand, eight hundred eighty-nine".