20025190 has 16 divisors (see below), whose sum is σ = 36657360. Its totient is φ = 7874080.

The previous prime is 20025151. The next prime is 20025191. The reversal of 20025190 is 9152002.

It is a super-2 number, since 2×20025190² = 802016469072200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20025191) by changing a digit.

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, 16381 + ... + 17560.

It is an arithmetic number, because the mean of its divisors is an integer number (2291085).

Almost surely, 2^20025190 is an apocalyptic number.

20025190 is a deficient number, since it is larger than the sum of its proper divisors (16632170).

20025190 is a wasteful number, since it uses less digits than its factorization.

20025190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34007.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 20025190 is about 4474.9513963841. The cubic root of 20025190 is about 271.5556741482. Note that the first 3 decimals are identical.

Adding to 20025190 its reverse (9152002), we get a palindrome (29177192).

The spelling of 20025190 in words is "twenty million, twenty-five thousand, one hundred ninety".