320000253 has 8 divisors (see below), whose sum is σ = 428290368. Its totient is φ = 212521824.

The previous prime is 320000251. The next prime is 320000267. The reversal of 320000253 is 352000023.

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

It is not a de Polignac number, because 320000253 - 2¹ = 320000251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320000251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202000 + ... + 203577.

It is an arithmetic number, because the mean of its divisors is an integer number (53536296).

Almost surely, 2^320000253 is an apocalyptic number.

It is an amenable number.

320000253 is a deficient number, since it is larger than the sum of its proper divisors (108290115).

320000253 is a wasteful number, since it uses less digits than its factorization.

320000253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405843.

The product of its (nonzero) digits is 180, while the sum is 15.

The square root of 320000253 is about 17888.5508915619. The cubic root of 320000253 is about 683.9905589306.

Adding to 320000253 its reverse (352000023), we get a palindrome (672000276).

The spelling of 320000253 in words is "three hundred twenty million, two hundred fifty-three", and thus it is an aban number.