2564617 has 12 divisors (see below), whose sum is σ = 2885904. Its totient is φ = 2259920.

The previous prime is 2564609. The next prime is 2564621. The reversal of 2564617 is 7164652.

It is a happy number.

It is not a de Polignac number, because 2564617 - 2³ = 2564609 is a prime.

It is a Duffinian number.

2564617 is a Rhonda number in base 12.

It is not an unprimeable number, because it can be changed into a prime (2564657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30858 + ... + 30940.

It is an arithmetic number, because the mean of its divisors is an integer number (240492).

2^2564617 is an apocalyptic number.

It is an amenable number.

2564617 is a deficient number, since it is larger than the sum of its proper divisors (321287).

2564617 is an equidigital number, since it uses as much as digits as its factorization.

2564617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 147 counting only the distinct ones).

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

The square root of 2564617 is about 1601.4421625522. The cubic root of 2564617 is about 136.8802654994.

The spelling of 2564617 in words is "two million, five hundred sixty-four thousand, six hundred seventeen".