20305525004 has 24 divisors (see below), whose sum is σ = 35716724400. Its totient is φ = 10100811456.

The previous prime is 20305524983. The next prime is 20305525013. The reversal of 20305525004 is 40052550302.

It is an unprimeable number.

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, 1399274 + ... + 1413710.

It is an arithmetic number, because the mean of its divisors is an integer number (1488196850).

Almost surely, 2^20305525004 is an apocalyptic number.

It is an amenable number.

20305525004 is a deficient number, since it is larger than the sum of its proper divisors (15411199396).

20305525004 is a wasteful number, since it uses less digits than its factorization.

20305525004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16217 (or 16215 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 26.

The spelling of 20305525004 in words is "twenty billion, three hundred five million, five hundred twenty-five thousand, four".