800553681 has 24 divisors (see below), whose sum is σ = 1233217440. Its totient is φ = 498681216.

The previous prime is 800553653. The next prime is 800553701. The reversal of 800553681 is 186355008.

It is not a de Polignac number, because 800553681 - 2¹⁰ = 800552657 is a prime.

It is a super-2 number, since 2×800553681² = 1281772392325299522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (800533681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2446 + ... + 40088.

It is an arithmetic number, because the mean of its divisors is an integer number (51384060).

Almost surely, 2^800553681 is an apocalyptic number.

It is an amenable number.

800553681 is a deficient number, since it is larger than the sum of its proper divisors (432663759).

800553681 is a wasteful number, since it uses less digits than its factorization.

800553681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37805 (or 37802 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 800553681 is about 28294.0573442552. The cubic root of 800553681 is about 928.5318806296.

The spelling of 800553681 in words is "eight hundred million, five hundred fifty-three thousand, six hundred eighty-one".