25266489 has 8 divisors (see below), whose sum is σ = 35153472. Its totient is φ = 16111920.

The previous prime is 25266487. The next prime is 25266497. The reversal of 25266489 is 98466252.

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

It is not a de Polignac number, because 25266489 - 2¹ = 25266487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25266489.

It is not an unprimeable number, because it can be changed into a prime (25266487) 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, 183022 + ... + 183159.

It is an arithmetic number, because the mean of its divisors is an integer number (4394184).

Almost surely, 2^25266489 is an apocalyptic number.

It is an amenable number.

25266489 is a deficient number, since it is larger than the sum of its proper divisors (9886983).

25266489 is a wasteful number, since it uses less digits than its factorization.

25266489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366207.

The product of its digits is 207360, while the sum is 42.

The square root of 25266489 is about 5026.5782596116. The cubic root of 25266489 is about 293.4370620008.

The spelling of 25266489 in words is "twenty-five million, two hundred sixty-six thousand, four hundred eighty-nine".