252481 has 2 divisors, whose sum is σ = 252482. Its totient is φ = 252480.

The previous prime is 252463. The next prime is 252509. The reversal of 252481 is 184252.

252481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 234256 + 18225 = 484^2 + 135^2 .

It is a cyclic number.

It is not a de Polignac number, because 252481 - 2⁵ = 252449 is a prime.

It is a super-2 number, since 2×252481² = 127493310722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (252401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126240 + 126241.

It is an arithmetic number, because the mean of its divisors is an integer number (126241).

2²⁵²⁴⁸¹ is an apocalyptic number.

It is an amenable number.

252481 is a deficient number, since it is larger than the sum of its proper divisors (1).

252481 is an equidigital number, since it uses as much as digits as its factorization.

252481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 640, while the sum is 22.

The square root of 252481 is about 502.4748749938. The cubic root of 252481 is about 63.2037578549.

The spelling of 252481 in words is "two hundred fifty-two thousand, four hundred eighty-one".