553086721 has 8 divisors (see below), whose sum is σ = 638859744. Its totient is φ = 473229120.

The previous prime is 553086719. The next prime is 553086733. The reversal of 553086721 is 127680355.

553086721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 553086721 - 2¹ = 553086719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (553006721) 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, 1478655 + ... + 1479028.

It is an arithmetic number, because the mean of its divisors is an integer number (79857468).

Almost surely, 2^553086721 is an apocalyptic number.

It is an amenable number.

553086721 is a deficient number, since it is larger than the sum of its proper divisors (85773023).

553086721 is a wasteful number, since it uses less digits than its factorization.

553086721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2957711.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 553086721 is about 23517.7958363449. The cubic root of 553086721 is about 820.8511492287.

The spelling of 553086721 in words is "five hundred fifty-three million, eighty-six thousand, seven hundred twenty-one".