452509 has 4 divisors (see below), whose sum is σ = 455004. Its totient is φ = 450016.

The previous prime is 452497. The next prime is 452519. The reversal of 452509 is 905254.

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

It can be written as a sum of positive squares in 2 ways, for example, as 356409 + 96100 = 597^2 + 310^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-452509 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

452509 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452519) 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, 952 + ... + 1345.

It is an arithmetic number, because the mean of its divisors is an integer number (113751).

2⁴⁵²⁵⁰⁹ is an apocalyptic number.

It is an amenable number.

452509 is a deficient number, since it is larger than the sum of its proper divisors (2495).

452509 is a wasteful number, since it uses less digits than its factorization.

452509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 452509 is about 672.6878919677. The cubic root of 452509 is about 76.7730993931.

It can be divided in two parts, 452 and 509, that added together give a square (961 = 31²).

The spelling of 452509 in words is "four hundred fifty-two thousand, five hundred nine".