52115563 has 4 divisors (see below), whose sum is σ = 52184808. Its totient is φ = 52046320.

The previous prime is 52115561. The next prime is 52115579. The reversal of 52115563 is 36551125.

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 52115563 - 2¹ = 52115561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52115561) 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, 33481 + ... + 35002.

It is an arithmetic number, because the mean of its divisors is an integer number (13046202).

Almost surely, 2^52115563 is an apocalyptic number.

52115563 is a deficient number, since it is larger than the sum of its proper divisors (69245).

52115563 is an equidigital number, since it uses as much as digits as its factorization.

52115563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69244.

The product of its digits is 4500, while the sum is 28.

The square root of 52115563 is about 7219.1109563436. The cubic root of 52115563 is about 373.5274112259.

Adding to 52115563 its reverse (36551125), we get a palindrome (88666688).

The spelling of 52115563 in words is "fifty-two million, one hundred fifteen thousand, five hundred sixty-three".