252986 has 4 divisors (see below), whose sum is σ = 379482. Its totient is φ = 126492.

The previous prime is 252983. The next prime is 253003. The reversal of 252986 is 689252.

252986 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 180625 + 72361 = 425^2 + 269^2 .

It is not an unprimeable number, because it can be changed into a prime (252983) by changing a digit.

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 as a sum of consecutive naturals, namely, 63245 + ... + 63248.

2²⁵²⁹⁸⁶ is an apocalyptic number.

252986 is a deficient number, since it is larger than the sum of its proper divisors (126496).

252986 is a wasteful number, since it uses less digits than its factorization.

252986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126495.

The product of its digits is 8640, while the sum is 32.

The square root of 252986 is about 502.9771366573. The cubic root of 252986 is about 63.2458688007.

The spelling of 252986 in words is "two hundred fifty-two thousand, nine hundred eighty-six".