20853010 has 32 divisors (see below), whose sum is σ = 38800944. Its totient is φ = 8064000.

The previous prime is 20852981. The next prime is 20853023. The reversal of 20853010 is 1035802.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 683929 + 20169081 = 827^2 + 4491^2 .

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 15 ways as a sum of consecutive naturals, for example, 74070 + ... + 74350.

Almost surely, 2^20853010 is an apocalyptic number.

20853010 is a deficient number, since it is larger than the sum of its proper divisors (17947934).

20853010 is a wasteful number, since it uses less digits than its factorization.

20853010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510.

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

The square root of 20853010 is about 4566.5096080048. The cubic root of 20853010 is about 275.2472047119.

Adding to 20853010 its reverse (1035802), we get a palindrome (21888812).

The spelling of 20853010 in words is "twenty million, eight hundred fifty-three thousand, ten".