32530090321 has 3 divisors (see below), whose sum is σ = 32530270683. Its totient is φ = 32529909960.

The previous prime is 32530090297. The next prime is 32530090447. The reversal of 32530090321 is 12309003523.

The square root of 32530090321 is 180361.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 17341992721 + 15188097600 = 131689^2 + 123240^2 .

It is not a de Polignac number, because 32530090321 - 2⁵ = 32530090289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32530090321.

It is not an unprimeable number, because it can be changed into a prime (32530040321) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 90181 + ... + 270541.

It is an arithmetic number, because the mean of its divisors is an integer number (10843423561).

Almost surely, 2^32530090321 is an apocalyptic number.

32530090321 is the 180361-st square number.

32530090321 is the 90181-st centered octagonal number.

It is an amenable number.

32530090321 is a deficient number, since it is larger than the sum of its proper divisors (180362).

32530090321 is an frugal number, since it uses more digits than its factorization.

32530090321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360722 (or 180361 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 28.

Adding to 32530090321 its reverse (12309003523), we get a palindrome (44839093844).

The spelling of 32530090321 in words is "thirty-two billion, five hundred thirty million, ninety thousand, three hundred twenty-one".