2582731 has 2 divisors, whose sum is σ = 2582732. Its totient is φ = 2582730.

The previous prime is 2582729. The next prime is 2582737. The reversal of 2582731 is 1372852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2582731 - 2¹ = 2582729 is a prime.

It is a super-2 number, since 2×2582731² = 13340998836722, which contains 22 as substring.

Together with 2582729, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2582731.

It is not a weakly prime, because it can be changed into another prime (2582737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1291365 + 1291366.

It is an arithmetic number, because the mean of its divisors is an integer number (1291366).

2^2582731 is an apocalyptic number.

2582731 is a deficient number, since it is larger than the sum of its proper divisors (1).

2582731 is an equidigital number, since it uses as much as digits as its factorization.

2582731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 28.

The square root of 2582731 is about 1607.0877387374. The cubic root of 2582731 is about 137.2017734728.

The spelling of 2582731 in words is "two million, five hundred eighty-two thousand, seven hundred thirty-one".