20503352 has 16 divisors (see below), whose sum is σ = 38509800. Its totient is φ = 10234080.

The previous prime is 20503349. The next prime is 20503363. The reversal of 20503352 is 25330502.

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 3 ways as a sum of consecutive naturals, for example, 3674 + ... + 7382.

Almost surely, 2^20503352 is an apocalyptic number.

It is an amenable number.

20503352 is a deficient number, since it is larger than the sum of its proper divisors (18006448).

20503352 is a wasteful number, since it uses less digits than its factorization.

20503352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4406 (or 4402 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 20503352 is about 4528.0627204137. The cubic root of 20503352 is about 273.7000998820.

Adding to 20503352 its reverse (25330502), we get a palindrome (45833854).

The spelling of 20503352 in words is "twenty million, five hundred three thousand, three hundred fifty-two".