252518 has 16 divisors (see below), whose sum is σ = 458784. Its totient is φ = 101760.

The previous prime is 252509. The next prime is 252533. The reversal of 252518 is 815252.

252518 is a modest number, since divided by 518 gives 252 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 252493 and 252502.

It is a congruent number.

It is an unprimeable number.

252518 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293 + ... + 768.

It is an arithmetic number, because the mean of its divisors is an integer number (28674).

2²⁵²⁵¹⁸ is an apocalyptic number.

252518 is a deficient number, since it is larger than the sum of its proper divisors (206266).

252518 is a wasteful number, since it uses less digits than its factorization.

252518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087.

The product of its digits is 800, while the sum is 23.

The square root of 252518 is about 502.5116914063. The cubic root of 252518 is about 63.2068451166.

The spelling of 252518 in words is "two hundred fifty-two thousand, five hundred eighteen".