20022250 has 24 divisors (see below), whose sum is σ = 37614564. Its totient is φ = 7980600.

The previous prime is 20022239. The next prime is 20022269. The reversal of 20022250 is 5222002.

It can be written as a sum of positive squares in 2 ways, for example, as 13535041 + 6487209 = 3679^2 + 2547^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20022250.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70609 + ... + 70891.

Almost surely, 2^20022250 is an apocalyptic number.

20022250 is a deficient number, since it is larger than the sum of its proper divisors (17592314).

20022250 is an frugal number, since it uses more digits than its factorization.

20022250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583 (or 290 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 20022250 is about 4474.6228891383. The cubic root of 20022250 is about 271.5423840079.

Adding to 20022250 its reverse (5222002), we get a palindrome (25244252).

The spelling of 20022250 in words is "twenty million, twenty-two thousand, two hundred fifty".