20224523 has 8 divisors (see below), whose sum is σ = 22533120. Its totient is φ = 17994280.

The previous prime is 20224517. The next prime is 20224537. The reversal of 20224523 is 32542202.

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

It is a cyclic number.

It is not a de Polignac number, because 20224523 - 2⁴ = 20224507 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20224495 and 20224504.

It is not an unprimeable number, because it can be changed into a prime (20224423) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 19043 + ... + 20076.

It is an arithmetic number, because the mean of its divisors is an integer number (2816640).

Almost surely, 2^20224523 is an apocalyptic number.

20224523 is a deficient number, since it is larger than the sum of its proper divisors (2308597).

20224523 is a wasteful number, since it uses less digits than its factorization.

20224523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39177.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 20224523 is about 4497.1683312947. The cubic root of 20224523 is about 272.4537328513.

Adding to 20224523 its reverse (32542202), we get a palindrome (52766725).

The spelling of 20224523 in words is "twenty million, two hundred twenty-four thousand, five hundred twenty-three".