210530442052 has 24 divisors (see below), whose sum is σ = 423644088896. Its totient is φ = 89673788448.

The previous prime is 210530442037. The next prime is 210530442097. The reversal of 210530442052 is 250244035012.

It is a super-2 number, since 2×210530442052² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 210530442052.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23059683 + ... + 23068810.

Almost surely, 2^210530442052 is an apocalyptic number.

It is an amenable number.

210530442052 is an abundant number, since it is smaller than the sum of its proper divisors (213113646844).

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

210530442052 is a wasteful number, since it uses less digits than its factorization.

210530442052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46128667 (or 46128665 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 210530442052 its reverse (250244035012), we get a palindrome (460774477064).

The spelling of 210530442052 in words is "two hundred ten billion, five hundred thirty million, four hundred forty-two thousand, fifty-two".