320250253 has 8 divisors (see below), whose sum is σ = 323939000. Its totient is φ = 316569600.

The previous prime is 320250247. The next prime is 320250269. The reversal of 320250253 is 352052023.

It can be written as a sum of positive squares in 4 ways, for example, as 15468489 + 304781764 = 3933^2 + 17458^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320250253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320250223) 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 7 ways as a sum of consecutive naturals, for example, 115123 + ... + 117871.

It is an arithmetic number, because the mean of its divisors is an integer number (40492375).

Almost surely, 2^320250253 is an apocalyptic number.

It is an amenable number.

320250253 is a deficient number, since it is larger than the sum of its proper divisors (3688747).

320250253 is a wasteful number, since it uses less digits than its factorization.

320250253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4047.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 320250253 is about 17895.5372369762. The cubic root of 320250253 is about 684.1686349653.

The spelling of 320250253 in words is "three hundred twenty million, two hundred fifty thousand, two hundred fifty-three".