20503325404 has 6 divisors (see below), whose sum is σ = 35880819464. Its totient is φ = 10251662700.

The previous prime is 20503325369. The next prime is 20503325417. The reversal of 20503325404 is 40452330502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2562915672 + ... + 2562915679.

Almost surely, 2^20503325404 is an apocalyptic number.

It is an amenable number.

20503325404 is a deficient number, since it is larger than the sum of its proper divisors (15377494060).

20503325404 is a wasteful number, since it uses less digits than its factorization.

20503325404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5125831355 (or 5125831353 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 28.

Adding to 20503325404 its reverse (40452330502), we get a palindrome (60955655906).

The spelling of 20503325404 in words is "twenty billion, five hundred three million, three hundred twenty-five thousand, four hundred four".