2566219 has 2 divisors, whose sum is σ = 2566220. Its totient is φ = 2566218.

The previous prime is 2566199. The next prime is 2566229. The reversal of 2566219 is 9126652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2566219 - 2¹¹ = 2564171 is a prime.

It is a super-2 number, since 2×2566219² = 13170959911922, which contains 22 as substring.

It is equal to p₁₈₇₅₅₅ and since 2566219 and 187555 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (2566229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1283109 + 1283110.

It is an arithmetic number, because the mean of its divisors is an integer number (1283110).

2^2566219 is an apocalyptic number.

2566219 is a deficient number, since it is larger than the sum of its proper divisors (1).

2566219 is an equidigital number, since it uses as much as digits as its factorization.

2566219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 31.

The square root of 2566219 is about 1601.9422586348. The cubic root of 2566219 is about 136.9087605330.

It can be divided in two parts, 25662 and 19, that multiplied together give a triangular number (487578 = T₉₈₇).

The spelling of 2566219 in words is "two million, five hundred sixty-six thousand, two hundred nineteen".