20052170 has 16 divisors (see below), whose sum is σ = 36371808. Its totient is φ = 7959120.

The previous prime is 20052167. The next prime is 20052181. The reversal of 20052170 is 7125002.

It is a super-3 number, since 3×20052170³ (a number of 23 digits) contains 333 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6344 + ... + 8963.

It is an arithmetic number, because the mean of its divisors is an integer number (2273238).

Almost surely, 2^20052170 is an apocalyptic number.

20052170 is a deficient number, since it is larger than the sum of its proper divisors (16319638).

20052170 is a wasteful number, since it uses less digits than its factorization.

20052170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15445.

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 20052170 is about 4477.9649395680. The cubic root of 20052170 is about 271.6775753499.

Adding to 20052170 its reverse (7125002), we get a palindrome (27177172).

The spelling of 20052170 in words is "twenty million, fifty-two thousand, one hundred seventy".