215160563 has 4 divisors (see below), whose sum is σ = 215978928. Its totient is φ = 214342200.

The previous prime is 215160527. The next prime is 215160593. The reversal of 215160563 is 365061512.

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 215160563 - 2²⁰ = 214111987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215160523) 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, 408788 + ... + 409313.

It is an arithmetic number, because the mean of its divisors is an integer number (53994732).

Almost surely, 2^215160563 is an apocalyptic number.

215160563 is a deficient number, since it is larger than the sum of its proper divisors (818365).

215160563 is an equidigital number, since it uses as much as digits as its factorization.

215160563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818364.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 215160563 is about 14668.3524296357. The cubic root of 215160563 is about 599.2217344596.

The spelling of 215160563 in words is "two hundred fifteen million, one hundred sixty thousand, five hundred sixty-three".