20025170 has 16 divisors (see below), whose sum is σ = 39322368. Its totient is φ = 7281840.

The previous prime is 20025151. The next prime is 20025191. The reversal of 20025170 is 7152002.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90914 + ... + 91133.

It is an arithmetic number, because the mean of its divisors is an integer number (2457648).

Almost surely, 2^20025170 is an apocalyptic number.

20025170 is a deficient number, since it is larger than the sum of its proper divisors (19297198).

20025170 is a wasteful number, since it uses less digits than its factorization.

20025170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182065.

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

The square root of 20025170 is about 4474.9491617224. The cubic root of 20025170 is about 271.5555837435. Note that the first 4 decimals are identical.

Adding to 20025170 its reverse (7152002), we get a palindrome (27177172).

The spelling of 20025170 in words is "twenty million, twenty-five thousand, one hundred seventy".