2566363 has 4 divisors (see below), whose sum is σ = 2677968. Its totient is φ = 2454760.

The previous prime is 2566351. The next prime is 2566367. The reversal of 2566363 is 3636652.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2566363 - 2¹⁷ = 2435291 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2566367) 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, 55768 + ... + 55813.

It is an arithmetic number, because the mean of its divisors is an integer number (669492).

2^2566363 is an apocalyptic number.

2566363 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2566363 is a deficient number, since it is larger than the sum of its proper divisors (111605).

2566363 is a wasteful number, since it uses less digits than its factorization.

2566363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111604.

The product of its digits is 19440, while the sum is 31.

The square root of 2566363 is about 1601.9872034445. The cubic root of 2566363 is about 136.9113213034.

The spelling of 2566363 in words is "two million, five hundred sixty-six thousand, three hundred sixty-three".