52518717 has 24 divisors (see below), whose sum is σ = 80152800. Its totient is φ = 33045408.

The previous prime is 52518709. The next prime is 52518727. The reversal of 52518717 is 71781525.

It is not a de Polignac number, because 52518717 - 2³ = 52518709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52518727) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71283 + ... + 72015.

It is an arithmetic number, because the mean of its divisors is an integer number (3339700).

Almost surely, 2^52518717 is an apocalyptic number.

52518717 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

52518717 is a deficient number, since it is larger than the sum of its proper divisors (27634083).

52518717 is a wasteful number, since it uses less digits than its factorization.

52518717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177 (or 1174 counting only the distinct ones).

The product of its digits is 19600, while the sum is 36.

The square root of 52518717 is about 7246.9798537046. The cubic root of 52518717 is about 374.4881122404.

It can be divided in two parts, 52518 and 717, that added together give a palindrome (53235).

The spelling of 52518717 in words is "fifty-two million, five hundred eighteen thousand, seven hundred seventeen".