20025004605 has 8 divisors (see below), whose sum is σ = 32040007392. Its totient is φ = 10680002448.

The previous prime is 20025004603. The next prime is 20025004613. The reversal of 20025004605 is 50640052002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20025004605 - 2¹ = 20025004603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20025004603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 667500139 + ... + 667500168.

It is an arithmetic number, because the mean of its divisors is an integer number (4005000924).

Almost surely, 2^20025004605 is an apocalyptic number.

It is an amenable number.

20025004605 is a deficient number, since it is larger than the sum of its proper divisors (12015002787).

20025004605 is a wasteful number, since it uses less digits than its factorization.

20025004605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335000315.

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 20025004605 its reverse (50640052002), we get a palindrome (70665056607).

The spelling of 20025004605 in words is "twenty billion, twenty-five million, four thousand, six hundred five".