20565483 has 4 divisors (see below), whose sum is σ = 27420648. Its totient is φ = 13710320.

The previous prime is 20565463. The next prime is 20565509. The reversal of 20565483 is 38456502.

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 20565483 - 2¹⁰ = 20564459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20565403) 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, 3427578 + ... + 3427583.

It is an arithmetic number, because the mean of its divisors is an integer number (6855162).

Almost surely, 2^20565483 is an apocalyptic number.

20565483 is a deficient number, since it is larger than the sum of its proper divisors (6855165).

20565483 is an equidigital number, since it uses as much as digits as its factorization.

20565483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6855164.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 20565483 is about 4534.9181911033. The cubic root of 20565483 is about 273.9762841995.

The spelling of 20565483 in words is "twenty million, five hundred sixty-five thousand, four hundred eighty-three".