250713 has 12 divisors (see below), whose sum is σ = 367380. Its totient is φ = 164736.

The previous prime is 250709. The next prime is 250721. The reversal of 250713 is 317052.

It can be written as a sum of positive squares in 2 ways, for example, as 17424 + 233289 = 132^2 + 483^2 .

It is not a de Polignac number, because 250713 - 2² = 250709 is a prime.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (250703) 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 11 ways as a sum of consecutive naturals, for example, 645 + ... + 957.

It is an arithmetic number, because the mean of its divisors is an integer number (30615).

2²⁵⁰⁷¹³ is an apocalyptic number.

It is an amenable number.

250713 is a deficient number, since it is larger than the sum of its proper divisors (116667).

250713 is a wasteful number, since it uses less digits than its factorization.

250713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408 (or 405 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 250713 is about 500.7124923546. The cubic root of 250713 is about 63.0558838983.

Adding to 250713 its reverse (317052), we get a palindrome (567765).

The spelling of 250713 in words is "two hundred fifty thousand, seven hundred thirteen".