20889250 has 16 divisors (see below), whose sum is σ = 39105144. Its totient is φ = 8355600.

The previous prime is 20889233. The next prime is 20889269. The reversal of 20889250 is 5298802.

It can be written as a sum of positive squares in 4 ways, for example, as 13712209 + 7177041 = 3703^2 + 2679^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41529 + ... + 42028.

Almost surely, 2^20889250 is an apocalyptic number.

20889250 is a deficient number, since it is larger than the sum of its proper divisors (18215894).

20889250 is an equidigital number, since it uses as much as digits as its factorization.

20889250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83574 (or 83564 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 20889250 is about 4570.4759051985. The cubic root of 20889250 is about 275.4065611764.

The spelling of 20889250 in words is "twenty million, eight hundred eighty-nine thousand, two hundred fifty".