252651511 has 16 divisors (see below), whose sum is σ = 294497280. Its totient is φ = 212266080.

The previous prime is 252651491. The next prime is 252651517. The reversal of 252651511 is 115156252.

It is a cyclic number.

It is not a de Polignac number, because 252651511 - 2⁷ = 252651383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252651511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252651517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189730 + ... + 191056.

It is an arithmetic number, because the mean of its divisors is an integer number (18406080).

Almost surely, 2^252651511 is an apocalyptic number.

252651511 is a deficient number, since it is larger than the sum of its proper divisors (41845769).

252651511 is a wasteful number, since it uses less digits than its factorization.

252651511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854.

The product of its digits is 3000, while the sum is 28.

The square root of 252651511 is about 15895.0152878190. The cubic root of 252651511 is about 632.1798270191.

The spelling of 252651511 in words is "two hundred fifty-two million, six hundred fifty-one thousand, five hundred eleven".