20226475 has 12 divisors (see below), whose sum is σ = 25426696. Its totient is φ = 15958080.

The previous prime is 20226473. The next prime is 20226487. The reversal of 20226475 is 57462202.

It is not a de Polignac number, because 20226475 - 2¹ = 20226473 is a prime.

It is a super-2 number, since 2×20226475² = 818220581851250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20226473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3717 + ... + 7366.

Almost surely, 2^20226475 is an apocalyptic number.

20226475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20226475 is a deficient number, since it is larger than the sum of its proper divisors (5200221).

20226475 is a wasteful number, since it uses less digits than its factorization.

20226475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11166 (or 11161 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 20226475 is about 4497.3853515126. The cubic root of 20226475 is about 272.4624979954.

Adding to 20226475 its reverse (57462202), we get a palindrome (77688677).

The spelling of 20226475 in words is "twenty million, two hundred twenty-six thousand, four hundred seventy-five".