2355563 has 16 divisors (see below), whose sum is σ = 2880000. Its totient is φ = 1881792.

The previous prime is 2355559. The next prime is 2355581. The reversal of 2355563 is 3655532.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2355563 - 2² = 2355559 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2²¹ + 3 + 5 + 5⁵ + 5⁷ + 6 + 3¹¹ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2355533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11738 + ... + 11936.

It is an arithmetic number, because the mean of its divisors is an integer number (180000).

2^2355563 is an apocalyptic number.

2355563 is a deficient number, since it is larger than the sum of its proper divisors (524437).

2355563 is a wasteful number, since it uses less digits than its factorization.

2355563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314.

The product of its digits is 13500, while the sum is 29.

The square root of 2355563 is about 1534.7843496726. The cubic root of 2355563 is about 133.0551150019.

The spelling of 2355563 in words is "two million, three hundred fifty-five thousand, five hundred sixty-three".