52815699 has 16 divisors (see below), whose sum is σ = 80944800. Its totient is φ = 33995808.

The previous prime is 52815673. The next prime is 52815701. The reversal of 52815699 is 99651825.

52815699 is a `hidden beast` number, since 5 + 2 + 81 + 569 + 9 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-52815699 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (52815629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32944 + ... + 34509.

It is an arithmetic number, because the mean of its divisors is an integer number (5059050).

Almost surely, 2^52815699 is an apocalyptic number.

52815699 is a deficient number, since it is larger than the sum of its proper divisors (28129101).

52815699 is a wasteful number, since it uses less digits than its factorization.

52815699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67491 (or 67485 counting only the distinct ones).

The product of its digits is 194400, while the sum is 45.

The square root of 52815699 is about 7267.4410214325. The cubic root of 52815699 is about 375.1926689928.

The spelling of 52815699 in words is "fifty-two million, eight hundred fifteen thousand, six hundred ninety-nine".