2585520116 has 12 divisors (see below), whose sum is σ = 4555028100. Its totient is φ = 1284083520.

The previous prime is 2585520079. The next prime is 2585520139. The reversal of 2585520116 is 6110255852.

It can be written as a sum of positive squares in 2 ways, for example, as 1037097616 + 1548422500 = 32204^2 + 39350^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2168465 + ... + 2169656.

It is an arithmetic number, because the mean of its divisors is an integer number (379585675).

Almost surely, 2^2585520116 is an apocalyptic number.

It is an amenable number.

2585520116 is a deficient number, since it is larger than the sum of its proper divisors (1969507984).

2585520116 is a wasteful number, since it uses less digits than its factorization.

2585520116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4338274 (or 4338272 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 35.

The square root of 2585520116 is about 50848.0099512262. The cubic root of 2585520116 is about 1372.5114420918.

Adding to 2585520116 its reverse (6110255852), we get a palindrome (8695775968).

The spelling of 2585520116 in words is "two billion, five hundred eighty-five million, five hundred twenty thousand, one hundred sixteen".