20262250 has 16 divisors (see below), whose sum is σ = 37931400. Its totient is φ = 8104800.

The previous prime is 20262239. The next prime is 20262257. The reversal of 20262250 is 5226202.

It can be written as a sum of positive squares in 4 ways, for example, as 2343961 + 17918289 = 1531^2 + 4233^2 .

It is not an unprimeable number, because it can be changed into a prime (20262257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40275 + ... + 40774.

Almost surely, 2^20262250 is an apocalyptic number.

20262250 is a deficient number, since it is larger than the sum of its proper divisors (17669150).

20262250 is an equidigital number, since it uses as much as digits as its factorization.

20262250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81066 (or 81056 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 20262250 is about 4501.3609053263. The cubic root of 20262250 is about 272.6230401351.

Adding to 20262250 its reverse (5226202), we get a palindrome (25488452).

The spelling of 20262250 in words is "twenty million, two hundred sixty-two thousand, two hundred fifty".