20302250 has 48 divisors (see below), whose sum is σ = 40516632. Its totient is φ = 7616000.

The previous prime is 20302223. The next prime is 20302259. The reversal of 20302250 is 5220302.

It can be written as a sum of positive squares in 12 ways, for example, as 597529 + 19704721 = 773^2 + 4439^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302259) 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 23 ways as a sum of consecutive naturals, for example, 72110 + ... + 72390.

Almost surely, 2^20302250 is an apocalyptic number.

20302250 is a deficient number, since it is larger than the sum of its proper divisors (20214382).

20302250 is a wasteful number, since it uses less digits than its factorization.

20302250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 20302250 is about 4505.8018154375. The cubic root of 20302250 is about 272.8023185735.

Adding to 20302250 its reverse (5220302), we get a palindrome (25522552).

The spelling of 20302250 in words is "twenty million, three hundred two thousand, two hundred fifty".