20325632 has 18 divisors (see below), whose sum is σ = 40572378. Its totient is φ = 10162688.

The previous prime is 20325619. The next prime is 20325637. The reversal of 20325632 is 23652302.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 14868736 + 5456896 = 3856^2 + 2336^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20325598 and 20325607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20325637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39443 + ... + 39954.

It is an arithmetic number, because the mean of its divisors is an integer number (2254021).

Almost surely, 2^20325632 is an apocalyptic number.

It is an amenable number.

20325632 is a deficient number, since it is larger than the sum of its proper divisors (20246746).

20325632 is an frugal number, since it uses more digits than its factorization.

20325632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79413 (or 79399 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 20325632 is about 4508.3957235363. The cubic root of 20325632 is about 272.9070067504.

Adding to 20325632 its reverse (23652302), we get a palindrome (43977934).

The spelling of 20325632 in words is "twenty million, three hundred twenty-five thousand, six hundred thirty-two".