20004547475 has 24 divisors (see below), whose sum is σ = 27141121488. Its totient is φ = 14505523200.

The previous prime is 20004547471. The next prime is 20004547477. The reversal of 20004547475 is 57474540002.

It is not a de Polignac number, because 20004547475 - 2² = 20004547471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20004547471) 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 23 ways as a sum of consecutive naturals, for example, 15254 + ... + 200603.

It is an arithmetic number, because the mean of its divisors is an integer number (1130880062).

Almost surely, 2^20004547475 is an apocalyptic number.

20004547475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20004547475 is a deficient number, since it is larger than the sum of its proper divisors (7136574013).

20004547475 is a wasteful number, since it uses less digits than its factorization.

20004547475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216215 (or 216210 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 38.

The spelling of 20004547475 in words is "twenty billion, four million, five hundred forty-seven thousand, four hundred seventy-five".