20012250 has 32 divisors (see below), whose sum is σ = 49952448. Its totient is φ = 5336400.

The previous prime is 20012219. The next prime is 20012261. The reversal of 20012250 is 5221002.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 12592 + ... + 14091.

It is an arithmetic number, because the mean of its divisors is an integer number (1561014).

Almost surely, 2^20012250 is an apocalyptic number.

20012250 is an abundant number, since it is smaller than the sum of its proper divisors (29940198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20012250 is a wasteful number, since it uses less digits than its factorization.

20012250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26703 (or 26693 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 20012250 is about 4473.5053369813. The cubic root of 20012250 is about 271.4971697082.

Adding to 20012250 its reverse (5221002), we get a palindrome (25233252).

The spelling of 20012250 in words is "twenty million, twelve thousand, two hundred fifty".