2561324 has 12 divisors (see below), whose sum is σ = 4494000. Its totient is φ = 1277328.

The previous prime is 2561323. The next prime is 2561327. The reversal of 2561324 is 4231652.

It is a self number, because there is not a number n which added to its sum of digits gives 2561324.

It is not an unprimeable number, because it can be changed into a prime (2561323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1862 + ... + 2930.

It is an arithmetic number, because the mean of its divisors is an integer number (374500).

2^2561324 is an apocalyptic number.

It is an amenable number.

2561324 is a deficient number, since it is larger than the sum of its proper divisors (1932676).

2561324 is a wasteful number, since it uses less digits than its factorization.

2561324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1672 (or 1670 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 2561324 is about 1600.4136965172. The cubic root of 2561324 is about 136.8216550879.

Adding to 2561324 its reverse (4231652), we get a palindrome (6792976).

The spelling of 2561324 in words is "two million, five hundred sixty-one thousand, three hundred twenty-four".