20831050 has 12 divisors (see below), whose sum is σ = 38745846. Its totient is φ = 8332400.

The previous prime is 20831017. The next prime is 20831051. The reversal of 20831050 is 5013802.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 16475481 + 4355569 = 4059^2 + 2087^2 .

It is not an unprimeable number, because it can be changed into a prime (20831051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 208261 + ... + 208360.

Almost surely, 2^20831050 is an apocalyptic number.

20831050 is a deficient number, since it is larger than the sum of its proper divisors (17914796).

20831050 is a wasteful number, since it uses less digits than its factorization.

20831050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416633 (or 416628 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 20831050 is about 4564.1045123879. The cubic root of 20831050 is about 275.1505511732.

Adding to 20831050 its reverse (5013802), we get a palindrome (25844852).

The spelling of 20831050 in words is "twenty million, eight hundred thirty-one thousand, fifty".