20525204104 has 32 divisors (see below), whose sum is σ = 39640645440. Its totient is φ = 9957528000.

The previous prime is 20525204087. The next prime is 20525204107. The reversal of 20525204104 is 40140252502.

It is not an unprimeable number, because it can be changed into a prime (20525204107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145627 + ... + 249514.

It is an arithmetic number, because the mean of its divisors is an integer number (1238770170).

Almost surely, 2^20525204104 is an apocalyptic number.

It is an amenable number.

20525204104 is a deficient number, since it is larger than the sum of its proper divisors (19115441336).

20525204104 is a wasteful number, since it uses less digits than its factorization.

20525204104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395341 (or 395337 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 20525204104 its reverse (40140252502), we get a palindrome (60665456606).

The spelling of 20525204104 in words is "twenty billion, five hundred twenty-five million, two hundred four thousand, one hundred four".