8505579503425 has 12 divisors (see below), whose sum is σ = 10547422354800. Its totient is φ = 6804138589520.

The previous prime is 8505579503419. The next prime is 8505579503549. The reversal of 8505579503425 is 5243059755058.

It is not a de Polignac number, because 8505579503425 - 2³ = 8505579503417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8505579503425.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7590775 + ... + 8638924.

It is an arithmetic number, because the mean of its divisors is an integer number (878951862900).

Almost surely, 2^{8505579503425} is an apocalyptic number.

It is an amenable number.

8505579503425 is a deficient number, since it is larger than the sum of its proper divisors (2041842851375).

8505579503425 is a wasteful number, since it uses less digits than its factorization.

8505579503425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16250672 (or 16250667 counting only the distinct ones).

The product of its (nonzero) digits is 37800000, while the sum is 58.

The spelling of 8505579503425 in words is "eight trillion, five hundred five billion, five hundred seventy-nine million, five hundred three thousand, four hundred twenty-five".