20425316504 has 16 divisors (see below), whose sum is σ = 38368266720. Its totient is φ = 10193778720.

The previous prime is 20425316503. The next prime is 20425316581. The reversal of 20425316504 is 40561352402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20425316503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2355344 + ... + 2363999.

It is an arithmetic number, because the mean of its divisors is an integer number (2398016670).

Almost surely, 2^20425316504 is an apocalyptic number.

It is an amenable number.

20425316504 is a deficient number, since it is larger than the sum of its proper divisors (17942950216).

20425316504 is a wasteful number, since it uses less digits than its factorization.

20425316504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4719890 (or 4719886 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 20425316504 its reverse (40561352402), we get a palindrome (60986668906).

The spelling of 20425316504 in words is "twenty billion, four hundred twenty-five million, three hundred sixteen thousand, five hundred four".