42213224525 has 12 divisors (see below), whose sum is σ = 52572983700. Its totient is φ = 33623105280.

The previous prime is 42213224513. The next prime is 42213224531. The reversal of 42213224525 is 52542231224.

It can be written as a sum of positive squares in 6 ways, for example, as 39262756 + 42173961769 = 6266^2 + 205363^2 .

It is not a de Polignac number, because 42213224525 - 2⁶ = 42213224461 is a prime.

It is a super-3 number, since 3×42213224525³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 42213224491 and 42213224500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3681020 + ... + 3692469.

It is an arithmetic number, because the mean of its divisors is an integer number (4381081975).

Almost surely, 2^42213224525 is an apocalyptic number.

It is an amenable number.

42213224525 is a deficient number, since it is larger than the sum of its proper divisors (10359759175).

42213224525 is a wasteful number, since it uses less digits than its factorization.

42213224525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7373728 (or 7373723 counting only the distinct ones).

The product of its digits is 38400, while the sum is 32.

Adding to 42213224525 its reverse (52542231224), we get a palindrome (94755455749).

The spelling of 42213224525 in words is "forty-two billion, two hundred thirteen million, two hundred twenty-four thousand, five hundred twenty-five".