2585722993 has 8 divisors (see below), whose sum is σ = 3015420800. Its totient is φ = 2216333700.

The previous prime is 2585722991. The next prime is 2585723029. The reversal of 2585722993 is 3992275852.

It is not a de Polignac number, because 2585722993 - 2¹ = 2585722991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2585722993.

It is not an unprimeable number, because it can be changed into a prime (2585722991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3768933 + ... + 3769618.

It is an arithmetic number, because the mean of its divisors is an integer number (376927600).

Almost surely, 2^2585722993 is an apocalyptic number.

It is an amenable number.

2585722993 is a deficient number, since it is larger than the sum of its proper divisors (429697807).

2585722993 is an frugal number, since it uses more digits than its factorization.

2585722993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7538572 (or 7538558 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 52.

The square root of 2585722993 is about 50850.0048475907. The cubic root of 2585722993 is about 1372.5473399265.

The spelling of 2585722993 in words is "two billion, five hundred eighty-five million, seven hundred twenty-two thousand, nine hundred ninety-three".