800516253 has 4 divisors (see below), whose sum is σ = 1067355008. Its totient is φ = 533677500.

The previous prime is 800516231. The next prime is 800516279. The reversal of 800516253 is 352615008.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 800516253 - 2⁸ = 800515997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 800516253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800596253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133419373 + ... + 133419378.

It is an arithmetic number, because the mean of its divisors is an integer number (266838752).

Almost surely, 2^800516253 is an apocalyptic number.

It is an amenable number.

800516253 is a deficient number, since it is larger than the sum of its proper divisors (266838755).

800516253 is a wasteful number, since it uses less digits than its factorization.

800516253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266838754.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 800516253 is about 28293.3959255512. The cubic root of 800516253 is about 928.5174099644.

The spelling of 800516253 in words is "eight hundred million, five hundred sixteen thousand, two hundred fifty-three".