210450132520 has 64 divisors (see below), whose sum is σ = 502283954880. Its totient is φ = 79083303936.

The previous prime is 210450132517. The next prime is 210450132533. The reversal of 210450132520 is 25231054012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89067 + ... + 654853.

It is an arithmetic number, because the mean of its divisors is an integer number (7848186795).

Almost surely, 2^210450132520 is an apocalyptic number.

210450132520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210450132520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251141977440).

210450132520 is an abundant number, since it is smaller than the sum of its proper divisors (291833822360).

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

210450132520 is a wasteful number, since it uses less digits than its factorization.

210450132520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566362 (or 566358 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 210450132520 its reverse (25231054012), we get a palindrome (235681186532).

The spelling of 210450132520 in words is "two hundred ten billion, four hundred fifty million, one hundred thirty-two thousand, five hundred twenty".