252766 has 8 divisors (see below), whose sum is σ = 387360. Its totient is φ = 123648.

The previous prime is 252761. The next prime is 252767. The reversal of 252766 is 667252.

252766 = T₄₀₉ + T₄₁₀ + T₄₁₁.

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

It is a d-powerful number, because it can be written as 2⁹ + 5⁷ + 7⁶ + 2¹¹ + 6⁵ + 6⁶ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252761) 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 3 ways as a sum of consecutive naturals, for example, 1251 + ... + 1438.

It is an arithmetic number, because the mean of its divisors is an integer number (48420).

2²⁵²⁷⁶⁶ is an apocalyptic number.

252766 is the 411-st centered triangular number.

252766 is a deficient number, since it is larger than the sum of its proper divisors (134594).

252766 is a wasteful number, since it uses less digits than its factorization.

252766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2738.

The product of its digits is 5040, while the sum is 28.

The square root of 252766 is about 502.7583912776. The cubic root of 252766 is about 63.2275303335.

The spelling of 252766 in words is "two hundred fifty-two thousand, seven hundred sixty-six".