532521220 has 96 divisors (see below), whose sum is σ = 1422892800. Its totient is φ = 165957120.

The previous prime is 532521211. The next prime is 532521221. The reversal of 532521220 is 22125235.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 532521191 and 532521200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (532521221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71932 + ... + 78988.

It is an arithmetic number, because the mean of its divisors is an integer number (14821800).

Almost surely, 2^532521220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 532521220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (711446400).

532521220 is an abundant number, since it is smaller than the sum of its proper divisors (890371580).

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

532521220 is a wasteful number, since it uses less digits than its factorization.

532521220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7098 (or 7082 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 532521220 is about 23076.4212996730. The cubic root of 532521220 is about 810.5484371953.

Adding to 532521220 its reverse (22125235), we get a palindrome (554646455).

The spelling of 532521220 in words is "five hundred thirty-two million, five hundred twenty-one thousand, two hundred twenty".