20325075447 has 16 divisors (see below), whose sum is σ = 28557536000. Its totient is φ = 12822888384.

The previous prime is 20325075391. The next prime is 20325075473. The reversal of 20325075447 is 74457052302.

It is not a de Polignac number, because 20325075447 - 2⁷ = 20325075319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20325075497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141622 + ... + 246387.

It is an arithmetic number, because the mean of its divisors is an integer number (1784846000).

Almost surely, 2^20325075447 is an apocalyptic number.

20325075447 is a deficient number, since it is larger than the sum of its proper divisors (8232460553).

20325075447 is a wasteful number, since it uses less digits than its factorization.

20325075447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388950.

The product of its (nonzero) digits is 235200, while the sum is 39.

The spelling of 20325075447 in words is "twenty billion, three hundred twenty-five million, seventy-five thousand, four hundred forty-seven".