553351021 has 8 divisors (see below), whose sum is σ = 568633824. Its totient is φ = 538085520.

The previous prime is 553351013. The next prime is 553351027. The reversal of 553351021 is 120153355.

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 553351021 - 2³ = 553351013 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 (553351027) 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 7 ways as a sum of consecutive naturals, for example, 86106 + ... + 92308.

It is an arithmetic number, because the mean of its divisors is an integer number (71079228).

Almost surely, 2^553351021 is an apocalyptic number.

It is an amenable number.

553351021 is a deficient number, since it is larger than the sum of its proper divisors (15282803).

553351021 is a wasteful number, since it uses less digits than its factorization.

553351021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8651.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 553351021 is about 23523.4143142529. The cubic root of 553351021 is about 820.9818800297.

The spelling of 553351021 in words is "five hundred fifty-three million, three hundred fifty-one thousand, twenty-one".