506249 has 4 divisors (see below), whose sum is σ = 508164. Its totient is φ = 504336.

The previous prime is 506213. The next prime is 506251. The reversal of 506249 is 942605.

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 60025 + 446224 = 245^2 + 668^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-506249 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (506269) 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 in 3 ways as a sum of consecutive naturals, for example, 482 + ... + 1115.

It is an arithmetic number, because the mean of its divisors is an integer number (127041).

2⁵⁰⁶²⁴⁹ is an apocalyptic number.

It is an amenable number.

506249 is a deficient number, since it is larger than the sum of its proper divisors (1915).

506249 is a wasteful number, since it uses less digits than its factorization.

506249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 506249 is about 711.5117708092. The cubic root of 506249 is about 79.6993402117.

The spelling of 506249 in words is "five hundred six thousand, two hundred forty-nine".