2566469 has 2 divisors, whose sum is σ = 2566470. Its totient is φ = 2566468.

The previous prime is 2566433. The next prime is 2566481. The reversal of 2566469 is 9646652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2137444 + 429025 = 1462^2 + 655^2 .

It is a cyclic number.

It is not a de Polignac number, because 2566469 - 2¹⁶ = 2500933 is a prime.

It is a super-2 number, since 2×2566469² = 13173526255922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2566489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1283234 + 1283235.

It is an arithmetic number, because the mean of its divisors is an integer number (1283235).

2^2566469 is an apocalyptic number.

It is an amenable number.

2566469 is a deficient number, since it is larger than the sum of its proper divisors (1).

2566469 is an equidigital number, since it uses as much as digits as its factorization.

2566469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 38.

The square root of 2566469 is about 1602.0202870126. The cubic root of 2566469 is about 136.9132062537.

The spelling of 2566469 in words is "two million, five hundred sixty-six thousand, four hundred sixty-nine".