210551530044 has 24 divisors (see below), whose sum is σ = 517144109440. Its totient is φ = 66489956784.

The previous prime is 210551530003. The next prime is 210551530061. The reversal of 210551530044 is 440035155012.

It is a junction number, because it is equal to n+sod(n) for n = 210551529993 and 210551530020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 461735584 + ... + 461736039.

Almost surely, 2^210551530044 is an apocalyptic number.

It is an amenable number.

210551530044 is an abundant number, since it is smaller than the sum of its proper divisors (306592579396).

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

210551530044 is a wasteful number, since it uses less digits than its factorization.

210551530044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923471649 (or 923471647 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 210551530044 its reverse (440035155012), we get a palindrome (650586685056).

The spelling of 210551530044 in words is "two hundred ten billion, five hundred fifty-one million, five hundred thirty thousand, forty-four".