20050871 has 16 divisors (see below), whose sum is σ = 23328000. Its totient is φ = 17094528.

The previous prime is 20050867. The next prime is 20050879. The reversal of 20050871 is 17805002.

It is not a de Polignac number, because 20050871 - 2² = 20050867 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20050879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6080 + ... + 8778.

It is an arithmetic number, because the mean of its divisors is an integer number (1458000).

Almost surely, 2^20050871 is an apocalyptic number.

20050871 is a deficient number, since it is larger than the sum of its proper divisors (3277129).

20050871 is a wasteful number, since it uses less digits than its factorization.

20050871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2758.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 20050871 is about 4477.8198936536. The cubic root of 20050871 is about 271.6717087066.

Adding to 20050871 its reverse (17805002), we get a palindrome (37855873).

The spelling of 20050871 in words is "twenty million, fifty thousand, eight hundred seventy-one".