2566263 has 8 divisors (see below), whose sum is σ = 3910528. Its totient is φ = 1466424.

The previous prime is 2566261. The next prime is 2566279. The reversal of 2566263 is 3626652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2566263 - 2¹ = 2566261 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2566263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2566261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61081 + ... + 61122.

It is an arithmetic number, because the mean of its divisors is an integer number (488816).

2^2566263 is an apocalyptic number.

2566263 is a deficient number, since it is larger than the sum of its proper divisors (1344265).

2566263 is a wasteful number, since it uses less digits than its factorization.

2566263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122213.

The product of its digits is 12960, while the sum is 30.

The square root of 2566263 is about 1601.9559919049. The cubic root of 2566263 is about 136.9095430008.

The spelling of 2566263 in words is "two million, five hundred sixty-six thousand, two hundred sixty-three".