20171050 has 24 divisors (see below), whose sum is σ = 37637100. Its totient is φ = 8042880.

The previous prime is 20171017. The next prime is 20171051. The reversal of 20171050 is 5017102.

It can be written as a sum of positive squares in 6 ways, for example, as 1274641 + 18896409 = 1129^2 + 4347^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20171051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28096 + ... + 28804.

Almost surely, 2^20171050 is an apocalyptic number.

20171050 is a deficient number, since it is larger than the sum of its proper divisors (17466050).

20171050 is a wasteful number, since it uses less digits than its factorization.

20171050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290 (or 1285 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 16.

The square root of 20171050 is about 4491.2192108602. The cubic root of 20171050 is about 272.2134012290.

Adding to 20171050 its reverse (5017102), we get a palindrome (25188152).

The spelling of 20171050 in words is "twenty million, one hundred seventy-one thousand, fifty".