20223567 has 32 divisors (see below), whose sum is σ = 36879360. Its totient is φ = 10666080.

The previous prime is 20223551. The next prime is 20223611. The reversal of 20223567 is 76532202.

It is not a de Polignac number, because 20223567 - 2⁴ = 20223551 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 20223567.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20223517) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1659 + ... + 6572.

It is an arithmetic number, because the mean of its divisors is an integer number (1152480).

Almost surely, 2^20223567 is an apocalyptic number.

20223567 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

20223567 is a deficient number, since it is larger than the sum of its proper divisors (16655793).

20223567 is a wasteful number, since it uses less digits than its factorization.

20223567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8260 (or 8254 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 20223567 is about 4497.0620409329. The cubic root of 20223567 is about 272.4494398803.

Adding to 20223567 its reverse (76532202), we get a palindrome (96755769).

The spelling of 20223567 in words is "twenty million, two hundred twenty-three thousand, five hundred sixty-seven".