2585797 has 2 divisors, whose sum is σ = 2585798. Its totient is φ = 2585796.

The previous prime is 2585783. The next prime is 2585813. The reversal of 2585797 is 7975852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2579236 + 6561 = 1606^2 + 81^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2585797 is a prime.

It is a super-2 number, since 2×2585797² = 13372692250418, which contains 22 as substring.

2585797 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2585707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1292898 + 1292899.

It is an arithmetic number, because the mean of its divisors is an integer number (1292899).

2^2585797 is an apocalyptic number.

It is an amenable number.

2585797 is a deficient number, since it is larger than the sum of its proper divisors (1).

2585797 is an equidigital number, since it uses as much as digits as its factorization.

2585797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 176400, while the sum is 43.

The square root of 2585797 is about 1608.0413551896. The cubic root of 2585797 is about 137.2560434542.

The spelling of 2585797 in words is "two million, five hundred eighty-five thousand, seven hundred ninety-seven".