20265226 has 4 divisors (see below), whose sum is σ = 30397842. Its totient is φ = 10132612.

The previous prime is 20265199. The next prime is 20265247. The reversal of 20265226 is 62256202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18931201 + 1334025 = 4351^2 + 1155^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20265226.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5066305 + ... + 5066308.

Almost surely, 2^20265226 is an apocalyptic number.

20265226 is a deficient number, since it is larger than the sum of its proper divisors (10132616).

20265226 is a wasteful number, since it uses less digits than its factorization.

20265226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10132615.

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

The square root of 20265226 is about 4501.6914598848. The cubic root of 20265226 is about 272.6363865708.

The spelling of 20265226 in words is "twenty million, two hundred sixty-five thousand, two hundred twenty-six".