20113750 has 20 divisors (see below), whose sum is σ = 37703556. Its totient is φ = 8045000.

The previous prime is 20113747. The next prime is 20113783. The reversal of 20113750 is 5731102.

It is a congruent number.

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 9 ways as a sum of consecutive naturals, for example, 6796 + ... + 9295.

Almost surely, 2^20113750 is an apocalyptic number.

20113750 is a deficient number, since it is larger than the sum of its proper divisors (17589806).

20113750 is an equidigital number, since it uses as much as digits as its factorization.

20113750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16113 (or 16098 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 20113750 is about 4484.8355599732. The cubic root of 20113750 is about 271.9553974587.

Adding to 20113750 its reverse (5731102), we get a palindrome (25844852).

The spelling of 20113750 in words is "twenty million, one hundred thirteen thousand, seven hundred fifty".