2585199164 has 18 divisors (see below), whose sum is σ = 4534371240. Its totient is φ = 1289670856.

The previous prime is 2585199161. The next prime is 2585199167. The reversal of 2585199164 is 4619915852.

It is an interprime number because it is at equal distance from previous prime (2585199161) and next prime (2585199167).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2585199161) 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 5 ways as a sum of consecutive naturals, for example, 1266857 + ... + 1268895.

Almost surely, 2^2585199164 is an apocalyptic number.

It is an amenable number.

2585199164 is a deficient number, since it is larger than the sum of its proper divisors (1949172076).

2585199164 is an equidigital number, since it uses as much as digits as its factorization.

2585199164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3169 (or 2604 counting only the distinct ones).

The product of its digits is 777600, while the sum is 50.

The square root of 2585199164 is about 50844.8538595599. The cubic root of 2585199164 is about 1372.4546477782.

The spelling of 2585199164 in words is "two billion, five hundred eighty-five million, one hundred ninety-nine thousand, one hundred sixty-four".