52815563 has 4 divisors (see below), whose sum is σ = 52845720. Its totient is φ = 52785408.

The previous prime is 52815559. The next prime is 52815589. The reversal of 52815563 is 36551825.

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 52815563 - 2² = 52815559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52815523) 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, 12278 + ... + 16011.

It is an arithmetic number, because the mean of its divisors is an integer number (13211430).

Almost surely, 2^52815563 is an apocalyptic number.

52815563 is a deficient number, since it is larger than the sum of its proper divisors (30157).

52815563 is a wasteful number, since it uses less digits than its factorization.

52815563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30156.

The product of its digits is 36000, while the sum is 35.

The square root of 52815563 is about 7267.4316646254. The cubic root of 52815563 is about 375.1923469532.

The spelling of 52815563 in words is "fifty-two million, eight hundred fifteen thousand, five hundred sixty-three".