252918511 has 4 divisors (see below), whose sum is σ = 263914992. Its totient is φ = 241922032.

The previous prime is 252918473. The next prime is 252918517. The reversal of 252918511 is 115819252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 252918511 - 2⁹ = 252917999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252918517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5498206 + ... + 5498251.

It is an arithmetic number, because the mean of its divisors is an integer number (65978748).

Almost surely, 2^252918511 is an apocalyptic number.

252918511 is a deficient number, since it is larger than the sum of its proper divisors (10996481).

252918511 is a wasteful number, since it uses less digits than its factorization.

252918511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10996480.

The product of its digits is 7200, while the sum is 34.

The square root of 252918511 is about 15903.4119295200. The cubic root of 252918511 is about 632.4024427328.

The spelling of 252918511 in words is "two hundred fifty-two million, nine hundred eighteen thousand, five hundred eleven".