252611566 has 8 divisors (see below), whose sum is σ = 380316384. Its totient is φ = 125839440.

The previous prime is 252611563. The next prime is 252611581. The reversal of 252611566 is 665116252.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252611561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232495 + ... + 233578.

It is an arithmetic number, because the mean of its divisors is an integer number (47539548).

Almost surely, 2^252611566 is an apocalyptic number.

252611566 is a deficient number, since it is larger than the sum of its proper divisors (127704818).

252611566 is a wasteful number, since it uses less digits than its factorization.

252611566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466346.

The product of its digits is 21600, while the sum is 34.

The square root of 252611566 is about 15893.7587121486. The cubic root of 252611566 is about 632.1465087222.

The spelling of 252611566 in words is "two hundred fifty-two million, six hundred eleven thousand, five hundred sixty-six".