42572223 has 10 divisors (see below), whose sum is σ = 63595664. Its totient is φ = 28381428.

The previous prime is 42572183. The next prime is 42572263. The reversal of 42572223 is 32227524.

It is an interprime number because it is at equal distance from previous prime (42572183) and next prime (42572263).

It is not a de Polignac number, because 42572223 - 2¹⁶ = 42506687 is a prime.

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

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42572263) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 262711 + ... + 262872.

Almost surely, 2^42572223 is an apocalyptic number.

42572223 is a deficient number, since it is larger than the sum of its proper divisors (21023441).

42572223 is an equidigital number, since it uses as much as digits as its factorization.

42572223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525595 (or 525586 counting only the distinct ones).

The product of its digits is 6720, while the sum is 27.

The square root of 42572223 is about 6524.7393051370. The cubic root of 42572223 is about 349.1741699816.

Adding to 42572223 its reverse (32227524), we get a palindrome (74799747).

The spelling of 42572223 in words is "forty-two million, five hundred seventy-two thousand, two hundred twenty-three".