252316505 has 16 divisors (see below), whose sum is σ = 355388160. Its totient is φ = 168340032.

The previous prime is 252316487. The next prime is 252316507. The reversal of 252316505 is 505613252.

It is a happy number.

It is not a de Polignac number, because 252316505 - 2²⁴ = 235539289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252316507) 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 15 ways as a sum of consecutive naturals, for example, 96125 + ... + 98714.

It is an arithmetic number, because the mean of its divisors is an integer number (22211760).

Almost surely, 2^252316505 is an apocalyptic number.

It is an amenable number.

252316505 is a deficient number, since it is larger than the sum of its proper divisors (103071655).

252316505 is a wasteful number, since it uses less digits than its factorization.

252316505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194888.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 252316505 is about 15884.4737086250. The cubic root of 252316505 is about 631.9002882068.

Adding to 252316505 its reverse (505613252), we get a palindrome (757929757).

The spelling of 252316505 in words is "two hundred fifty-two million, three hundred sixteen thousand, five hundred five".