36321563 has 4 divisors (see below), whose sum is σ = 36382800. Its totient is φ = 36260328.

The previous prime is 36321557. The next prime is 36321569. The reversal of 36321563 is 36512363.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36512363 = 29 ⋅1259047.

It is an interprime number because it is at equal distance from previous prime (36321557) and next prime (36321569).

It is a cyclic number.

It is not a de Polignac number, because 36321563 - 2⁶ = 36321499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36321569) 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, 29720 + ... + 30917.

It is an arithmetic number, because the mean of its divisors is an integer number (9095700).

Almost surely, 2^36321563 is an apocalyptic number.

36321563 is a deficient number, since it is larger than the sum of its proper divisors (61237).

36321563 is an equidigital number, since it uses as much as digits as its factorization.

36321563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61236.

The product of its digits is 9720, while the sum is 29.

The square root of 36321563 is about 6026.7373428747. The cubic root of 36321563 is about 331.1729395682.

The spelling of 36321563 in words is "thirty-six million, three hundred twenty-one thousand, five hundred sixty-three".