52815565 has 16 divisors (see below), whose sum is σ = 69284160. Its totient is φ = 38331520.

The previous prime is 52815559. The next prime is 52815589. The reversal of 52815565 is 56551825.

It is not a de Polignac number, because 52815565 - 2³ = 52815557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43902 + ... + 45088.

It is an arithmetic number, because the mean of its divisors is an integer number (4330260).

Almost surely, 2^52815565 is an apocalyptic number.

52815565 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52815565 is a deficient number, since it is larger than the sum of its proper divisors (16468595).

52815565 is a wasteful number, since it uses less digits than its factorization.

52815565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012.

The product of its digits is 60000, while the sum is 37.

The square root of 52815565 is about 7267.4318022256. The cubic root of 52815565 is about 375.1923516890.

The spelling of 52815565 in words is "fifty-two million, eight hundred fifteen thousand, five hundred sixty-five".