25289473 has 8 divisors (see below), whose sum is σ = 27656640. Its totient is φ = 22933680.

The previous prime is 25289377. The next prime is 25289477. The reversal of 25289473 is 37498252.

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

It is not a de Polignac number, because 25289473 - 2¹⁷ = 25158401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25289477) 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, 2211 + ... + 7447.

It is an arithmetic number, because the mean of its divisors is an integer number (3457080).

It is a vampire number, since it can be written as 4829 ⋅ 5237 (with its own digits).

Almost surely, 2^25289473 is an apocalyptic number.

It is an amenable number.

25289473 is a deficient number, since it is larger than the sum of its proper divisors (2367167).

25289473 is a wasteful number, since it uses less digits than its factorization.

25289473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5687.

The product of its digits is 120960, while the sum is 40.

The square root of 25289473 is about 5028.8639870253. The cubic root of 25289473 is about 293.5260113523.

The spelling of 25289473 in words is "twenty-five million, two hundred eighty-nine thousand, four hundred seventy-three".