20027205 has 24 divisors (see below), whose sum is σ = 37870560. Its totient is φ = 9709920.

The previous prime is 20027179. The next prime is 20027213. The reversal of 20027205 is 50272002.

It is a happy number.

It is not a de Polignac number, because 20027205 - 2¹⁷ = 19896133 is a prime.

It is a super-2 number, since 2×20027205² = 802177880224050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19735 + ... + 20724.

It is an arithmetic number, because the mean of its divisors is an integer number (1577940).

Almost surely, 2^20027205 is an apocalyptic number.

It is an amenable number.

20027205 is a deficient number, since it is larger than the sum of its proper divisors (17843355).

20027205 is a wasteful number, since it uses less digits than its factorization.

20027205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40481 (or 40478 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 20027205 is about 4475.1765328309. The cubic root of 20027205 is about 271.5647821156.

Adding to 20027205 its reverse (50272002), we get a palindrome (70299207).

The spelling of 20027205 in words is "twenty million, twenty-seven thousand, two hundred five".