25622889 has 8 divisors (see below), whose sum is σ = 34238880. Its totient is φ = 17044416.

The previous prime is 25622881. The next prime is 25622899. The reversal of 25622889 is 98822652.

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

It is not a de Polignac number, because 25622889 - 2³ = 25622881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25622889.

It is not an unprimeable number, because it can be changed into a prime (25622881) 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, 7744 + ... + 10545.

It is an arithmetic number, because the mean of its divisors is an integer number (4279860).

Almost surely, 2^25622889 is an apocalyptic number.

It is an amenable number.

25622889 is a deficient number, since it is larger than the sum of its proper divisors (8615991).

25622889 is a wasteful number, since it uses less digits than its factorization.

25622889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18759.

The product of its digits is 138240, while the sum is 42.

The square root of 25622889 is about 5061.9056688168. The cubic root of 25622889 is about 294.8103310143.

The spelling of 25622889 in words is "twenty-five million, six hundred twenty-two thousand, eight hundred eighty-nine".