2581267 has 16 divisors (see below), whose sum is σ = 2963520. Its totient is φ = 2230272.

The previous prime is 2581253. The next prime is 2581273. The reversal of 2581267 is 7621852.

2581267 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2581267 - 2¹⁵ = 2548499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2581367) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 26563 + ... + 26659.

It is an arithmetic number, because the mean of its divisors is an integer number (185220).

2^2581267 is an apocalyptic number.

2581267 is a deficient number, since it is larger than the sum of its proper divisors (382253).

2581267 is a wasteful number, since it uses less digits than its factorization.

2581267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222.

The product of its digits is 6720, while the sum is 31.

The square root of 2581267 is about 1606.6321918846. The cubic root of 2581267 is about 137.1758446710.

The spelling of 2581267 in words is "two million, five hundred eighty-one thousand, two hundred sixty-seven".