20025266 has 8 divisors (see below), whose sum is σ = 30461184. Its totient is φ = 9871540.

The previous prime is 20025253. The next prime is 20025277. The reversal of 20025266 is 66252002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20025266² = 802022556741512, which contains 22 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 3 ways as a sum of consecutive naturals, for example, 70370 + ... + 70653.

It is an arithmetic number, because the mean of its divisors is an integer number (3807648).

Almost surely, 2^20025266 is an apocalyptic number.

20025266 is a deficient number, since it is larger than the sum of its proper divisors (10435918).

20025266 is a wasteful number, since it uses less digits than its factorization.

20025266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141096.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 20025266 is about 4474.9598880884. The cubic root of 20025266 is about 271.5560176856.

Adding to 20025266 its reverse (66252002), we get a palindrome (86277268).

The spelling of 20025266 in words is "twenty million, twenty-five thousand, two hundred sixty-six".