52515317 has 8 divisors (see below), whose sum is σ = 54409440. Its totient is φ = 50626800.

The previous prime is 52515313. The next prime is 52515319. The reversal of 52515317 is 71351525.

It is a happy number.

52515317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52515317 - 2² = 52515313 is a prime.

It is a super-2 number, since 2×52515317² = 5515717039220978, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52515317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52515313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29618 + ... + 31340.

It is an arithmetic number, because the mean of its divisors is an integer number (6801180).

Almost surely, 2^52515317 is an apocalyptic number.

It is an amenable number.

52515317 is a deficient number, since it is larger than the sum of its proper divisors (1894123).

52515317 is a wasteful number, since it uses less digits than its factorization.

52515317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803.

The product of its digits is 5250, while the sum is 29.

The square root of 52515317 is about 7246.7452694296. The cubic root of 52515317 is about 374.4800307593.

The spelling of 52515317 in words is "fifty-two million, five hundred fifteen thousand, three hundred seventeen".