252403 has 4 divisors (see below), whose sum is σ = 255528. Its totient is φ = 249280.

The previous prime is 252401. The next prime is 252409. The reversal of 252403 is 304252.

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

It is a cyclic number.

It is not a de Polignac number, because 252403 - 2¹ = 252401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252401) 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, 1438 + ... + 1603.

It is an arithmetic number, because the mean of its divisors is an integer number (63882).

2²⁵²⁴⁰³ is an apocalyptic number.

252403 is a deficient number, since it is larger than the sum of its proper divisors (3125).

252403 is an equidigital number, since it uses as much as digits as its factorization.

252403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3124.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 252403 is about 502.3972531772. The cubic root of 252403 is about 63.1972485850.

Adding to 252403 its reverse (304252), we get a palindrome (556655).

The spelling of 252403 in words is "two hundred fifty-two thousand, four hundred three".