20325606 has 64 divisors (see below), whose sum is σ = 49517568. Its totient is φ = 5436288.

The previous prime is 20325581. The next prime is 20325619. The reversal of 20325606 is 60652302.

It is a super-4 number, since 4×20325606⁴ (a number of 30 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51000 + ... + 51396.

It is an arithmetic number, because the mean of its divisors is an integer number (773712).

Almost surely, 2^20325606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20325606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24758784).

20325606 is an abundant number, since it is smaller than the sum of its proper divisors (29191962).

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

20325606 is a wasteful number, since it uses less digits than its factorization.

20325606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 20325606 is about 4508.3928400263. The cubic root of 20325606 is about 272.9068903853.

Adding to 20325606 its reverse (60652302), we get a palindrome (80977908).

The spelling of 20325606 in words is "twenty million, three hundred twenty-five thousand, six hundred six".