2585723044 has 6 divisors (see below), whose sum is σ = 4525015334. Its totient is φ = 1292861520.

The previous prime is 2585723029. The next prime is 2585723057. The reversal of 2585723044 is 4403275852.

It can be written as a sum of positive squares in only one way, i.e., 2243916900 + 341806144 = 47370^2 + 18488^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2585722988 and 2585723006.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323215377 + ... + 323215384.

Almost surely, 2^2585723044 is an apocalyptic number.

It is an amenable number.

2585723044 is a deficient number, since it is larger than the sum of its proper divisors (1939292290).

2585723044 is a wasteful number, since it uses less digits than its factorization.

2585723044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646430765 (or 646430763 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 40.

The square root of 2585723044 is about 50850.0053490656. The cubic root of 2585723044 is about 1372.5473489504.

Adding to 2585723044 its reverse (4403275852), we get a palindrome (6988998896).

The spelling of 2585723044 in words is "two billion, five hundred eighty-five million, seven hundred twenty-three thousand, forty-four".