20032851 has 16 divisors (see below), whose sum is σ = 29196288. Its totient is φ = 12163200.

The previous prime is 20032847. The next prime is 20032867. The reversal of 20032851 is 15823002.

It is not a de Polignac number, because 20032851 - 2² = 20032847 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20032811) 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 15 ways as a sum of consecutive naturals, for example, 4755 + ... + 7916.

It is an arithmetic number, because the mean of its divisors is an integer number (1824768).

Almost surely, 2^20032851 is an apocalyptic number.

20032851 is a deficient number, since it is larger than the sum of its proper divisors (9163437).

20032851 is a wasteful number, since it uses less digits than its factorization.

20032851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12722.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 20032851 is about 4475.8073014820. The cubic root of 20032851 is about 271.5902992509.

Adding to 20032851 its reverse (15823002), we get a palindrome (35855853).

The spelling of 20032851 in words is "twenty million, thirty-two thousand, eight hundred fifty-one".