491280253 has 8 divisors (see below), whose sum is σ = 512970048. Its totient is φ = 469617984.

The previous prime is 491280241. The next prime is 491280259. The reversal of 491280253 is 352082194.

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

It is a cyclic number.

It is not a de Polignac number, because 491280253 - 2¹⁷ = 491149181 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 (491280259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35125 + ... + 47077.

It is an arithmetic number, because the mean of its divisors is an integer number (64121256).

Almost surely, 2^491280253 is an apocalyptic number.

It is an amenable number.

491280253 is a deficient number, since it is larger than the sum of its proper divisors (21689795).

491280253 is a wasteful number, since it uses less digits than its factorization.

491280253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13763.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 491280253 is about 22164.8427244589. The cubic root of 491280253 is about 789.0595297784.

The spelling of 491280253 in words is "four hundred ninety-one million, two hundred eighty thousand, two hundred fifty-three".