20563341 has 16 divisors (see below), whose sum is σ = 27864000. Its totient is φ = 13488128.

The previous prime is 20563337. The next prime is 20563343. The reversal of 20563341 is 14336502.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20563341 - 2² = 20563337 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20563343) 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, 79885 + ... + 80141.

It is an arithmetic number, because the mean of its divisors is an integer number (1741500).

Almost surely, 2^20563341 is an apocalyptic number.

It is an amenable number.

20563341 is a deficient number, since it is larger than the sum of its proper divisors (7300659).

20563341 is a wasteful number, since it uses less digits than its factorization.

20563341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 20563341 is about 4534.6820175179. The cubic root of 20563341 is about 273.9667718599.

Adding to 20563341 its reverse (14336502), we get a palindrome (34899843).

It can be divided in two parts, 205 and 63341, that added together give a triangular number (63546 = T₃₅₆).

The spelling of 20563341 in words is "twenty million, five hundred sixty-three thousand, three hundred forty-one".