2566417 has 4 divisors (see below), whose sum is σ = 2933056. Its totient is φ = 2199780.

The previous prime is 2566411. The next prime is 2566423. The reversal of 2566417 is 7146652.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2566411) and next prime (2566423).

It is a cyclic number.

It is not a de Polignac number, because 2566417 - 2¹¹ = 2564369 is a prime.

2566417 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2566411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183309 + ... + 183322.

It is an arithmetic number, because the mean of its divisors is an integer number (733264).

2^2566417 is an apocalyptic number.

It is an amenable number.

2566417 is a deficient number, since it is larger than the sum of its proper divisors (366639).

2566417 is an equidigital number, since it uses as much as digits as its factorization.

2566417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366638.

The product of its digits is 10080, while the sum is 31.

The square root of 2566417 is about 1602.0040574231. The cubic root of 2566417 is about 136.9122815676.

The spelling of 2566417 in words is "two million, five hundred sixty-six thousand, four hundred seventeen".