252511305 has 8 divisors (see below), whose sum is σ = 404018112. Its totient is φ = 134672688.

The previous prime is 252511291. The next prime is 252511361. The reversal of 252511305 is 503115252.

It is a happy number.

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

It is not a de Polignac number, because 252511305 - 2⁴ = 252511289 is a prime.

It is a Curzon number.

It is an unprimeable 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, 8417029 + ... + 8417058.

It is an arithmetic number, because the mean of its divisors is an integer number (50502264).

Almost surely, 2^252511305 is an apocalyptic number.

It is an amenable number.

252511305 is a deficient number, since it is larger than the sum of its proper divisors (151506807).

252511305 is a wasteful number, since it uses less digits than its factorization.

252511305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16834095.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 252511305 is about 15890.6042993965. The cubic root of 252511305 is about 632.0628651147.

Adding to 252511305 its reverse (503115252), we get a palindrome (755626557).

The spelling of 252511305 in words is "two hundred fifty-two million, five hundred eleven thousand, three hundred five".