20032550 has 12 divisors (see below), whose sum is σ = 37260636. Its totient is φ = 8013000.

The previous prime is 20032547. The next prime is 20032567. The reversal of 20032550 is 5523002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 200276 + ... + 200375.

It is an arithmetic number, because the mean of its divisors is an integer number (3105053).

Almost surely, 2^20032550 is an apocalyptic number.

20032550 is a deficient number, since it is larger than the sum of its proper divisors (17228086).

20032550 is a wasteful number, since it uses less digits than its factorization.

20032550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400663 (or 400658 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 17.

The square root of 20032550 is about 4475.7736761369. The cubic root of 20032550 is about 271.5889390003.

Adding to 20032550 its reverse (5523002), we get a palindrome (25555552).

The spelling of 20032550 in words is "twenty million, thirty-two thousand, five hundred fifty".