2582261 has 6 divisors (see below), whose sum is σ = 2838486. Its totient is φ = 2347400.

The previous prime is 2582257. The next prime is 2582311. The reversal of 2582261 is 1622852.

It can be written as a sum of positive squares in only one way, i.e., 2579236 + 3025 = 1606^2 + 55^2 .

It is not a de Polignac number, because 2582261 - 2² = 2582257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2582261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2582201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10550 + ... + 10791.

It is an arithmetic number, because the mean of its divisors is an integer number (473081).

2^2582261 is an apocalyptic number.

It is an amenable number.

2582261 is a deficient number, since it is larger than the sum of its proper divisors (256225).

2582261 is a wasteful number, since it uses less digits than its factorization.

2582261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21363 (or 21352 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

The square root of 2582261 is about 1606.9415048470. The cubic root of 2582261 is about 137.1934504037.

The spelling of 2582261 in words is "two million, five hundred eighty-two thousand, two hundred sixty-one".