2561334 has 8 divisors (see below), whose sum is σ = 5122680. Its totient is φ = 853776.

The previous prime is 2561327. The next prime is 2561341. The reversal of 2561334 is 4331652.

It is a happy number.

2561334 is nontrivially palindromic in base 4.

2561334 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2561327) and next prime (2561341).

It is a sphenic number, since it is the product of 3 distinct primes.

2561334 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213439 + ... + 213450.

It is an arithmetic number, because the mean of its divisors is an integer number (640335).

2^2561334 is an apocalyptic number.

2561334 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2561334 is a wasteful number, since it uses less digits than its factorization.

2561334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426894.

The product of its digits is 2160, while the sum is 24.

The square root of 2561334 is about 1600.4168207064. The cubic root of 2561334 is about 136.8218331488.

Adding to 2561334 its reverse (4331652), we get a palindrome (6892986).

The spelling of 2561334 in words is "two million, five hundred sixty-one thousand, three hundred thirty-four".