2580961 has 4 divisors (see below), whose sum is σ = 2592000. Its totient is φ = 2569924.

The previous prime is 2580959. The next prime is 2580973. The reversal of 2580961 is 1690852.

2580961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2580961 - 2¹ = 2580959 is a prime.

It is a super-2 number, since 2×2580961² = 13322719367042, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2580901) 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 3 ways as a sum of consecutive naturals, for example, 5161 + ... + 5638.

It is an arithmetic number, because the mean of its divisors is an integer number (648000).

2^2580961 is an apocalyptic number.

It is an amenable number.

2580961 is a deficient number, since it is larger than the sum of its proper divisors (11039).

2580961 is a wasteful number, since it uses less digits than its factorization.

2580961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11038.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 2580961 is about 1606.5369588030. The cubic root of 2580961 is about 137.1704238877.

The spelling of 2580961 in words is "two million, five hundred eighty thousand, nine hundred sixty-one".