20225266 has 8 divisors (see below), whose sum is σ = 30360240. Its totient is φ = 10105188.

The previous prime is 20225251. The next prime is 20225281. The reversal of 20225266 is 66252202.

It is an interprime number because it is at equal distance from previous prime (20225251) and next prime (20225281).

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

It is a super-2 number, since 2×20225266² = 818122769541512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20225266.

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, 745 + ... + 6403.

It is an arithmetic number, because the mean of its divisors is an integer number (3795030).

Almost surely, 2^20225266 is an apocalyptic number.

20225266 is a deficient number, since it is larger than the sum of its proper divisors (10134974).

20225266 is a wasteful number, since it uses less digits than its factorization.

20225266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7448.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 20225266 is about 4497.2509380732. The cubic root of 20225266 is about 272.4570692406.

Adding to 20225266 its reverse (66252202), we get a palindrome (86477468).

The spelling of 20225266 in words is "twenty million, two hundred twenty-five thousand, two hundred sixty-six".