210503430450 has 48 divisors (see below), whose sum is σ = 580053900960. Its totient is φ = 56134247760.

The previous prime is 210503430443. The next prime is 210503430469. The reversal of 210503430450 is 54034305012.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 77962884 + ... + 77965583.

It is an arithmetic number, because the mean of its divisors is an integer number (12084456270).

Almost surely, 2^210503430450 is an apocalyptic number.

210503430450 is an abundant number, since it is smaller than the sum of its proper divisors (369550470510).

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

210503430450 is a wasteful number, since it uses less digits than its factorization.

210503430450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155928488 (or 155928477 counting only the distinct ones).

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

Adding to 210503430450 its reverse (54034305012), we get a palindrome (264537735462).

The spelling of 210503430450 in words is "two hundred ten billion, five hundred three million, four hundred thirty thousand, four hundred fifty".