42205213530 has 48 divisors (see below), whose sum is σ = 111236771880. Its totient is φ = 11100547584.

The previous prime is 42205213529. The next prime is 42205213537. The reversal of 42205213530 is 3531250224.

It is a happy number.

42205213530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 39724874721 + 2480338809 = 199311^2 + 49803^2 .

It is a super-2 number, since 2×42205213530² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42205213494 and 42205213503.

It is not an unprimeable number, because it can be changed into a prime (42205213537) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3205395 + ... + 3218534.

Almost surely, 2^42205213530 is an apocalyptic number.

42205213530 is an abundant number, since it is smaller than the sum of its proper divisors (69031558350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42205213530 is a wasteful number, since it uses less digits than its factorization.

42205213530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6424015 (or 6424012 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 42205213530 its reverse (3531250224), we get a palindrome (45736463754).

The spelling of 42205213530 in words is "forty-two billion, two hundred five million, two hundred thirteen thousand, five hundred thirty".