36221563 has 4 divisors (see below), whose sum is σ = 41396080. Its totient is φ = 31047048.

The previous prime is 36221519. The next prime is 36221569. The reversal of 36221563 is 36512263.

36221563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36512263 = 41 ⋅890543.

It is a cyclic number.

It is not a de Polignac number, because 36221563 - 2¹³ = 36213371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36221569) 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 3 ways as a sum of consecutive naturals, for example, 2587248 + ... + 2587261.

It is an arithmetic number, because the mean of its divisors is an integer number (10349020).

Almost surely, 2^36221563 is an apocalyptic number.

36221563 is a deficient number, since it is larger than the sum of its proper divisors (5174517).

36221563 is an equidigital number, since it uses as much as digits as its factorization.

36221563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5174516.

The product of its digits is 6480, while the sum is 28.

The square root of 36221563 is about 6018.4352617603. The cubic root of 36221563 is about 330.8687333752.

The spelling of 36221563 in words is "thirty-six million, two hundred twenty-one thousand, five hundred sixty-three".