42213431225 has 24 divisors (see below), whose sum is σ = 62423445120. Its totient is φ = 27687813120.

The previous prime is 42213431207. The next prime is 42213431257. The reversal of 42213431225 is 52213431224.

It is not a de Polignac number, because 42213431225 - 2⁸ = 42213430969 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5239880 + ... + 5247929.

It is an arithmetic number, because the mean of its divisors is an integer number (2600976880).

Almost surely, 2^42213431225 is an apocalyptic number.

It is an amenable number.

42213431225 is a deficient number, since it is larger than the sum of its proper divisors (20210013895).

42213431225 is a wasteful number, since it uses less digits than its factorization.

42213431225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10487849 (or 10487844 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

Adding to 42213431225 its reverse (52213431224), we get a palindrome (94426862449).

Subtracting 42213431225 from its reverse (52213431224), we obtain a palindrome (9999999999).

The spelling of 42213431225 in words is "forty-two billion, two hundred thirteen million, four hundred thirty-one thousand, two hundred twenty-five".