2566413 has 12 divisors (see below), whose sum is σ = 3835260. Its totient is φ = 1651776.

The previous prime is 2566411. The next prime is 2566423. The reversal of 2566413 is 3146652.

It can be written as a sum of positive squares in 2 ways, for example, as 1340964 + 1225449 = 1158^2 + 1107^2 .

It is not a de Polignac number, because 2566413 - 2¹ = 2566411 is a prime.

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 4656 + ... + 5177.

It is an arithmetic number, because the mean of its divisors is an integer number (319605).

2^2566413 is an apocalyptic number.

It is an amenable number.

2566413 is a deficient number, since it is larger than the sum of its proper divisors (1268847).

2566413 is a wasteful number, since it uses less digits than its factorization.

2566413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9868 (or 9865 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 2566413 is about 1602.0028089863. The cubic root of 2566413 is about 136.9122104374.

The spelling of 2566413 in words is "two million, five hundred sixty-six thousand, four hundred thirteen".