553253021 has 8 divisors (see below), whose sum is σ = 560747520. Its totient is φ = 545807808.

The previous prime is 553253011. The next prime is 553253101. The reversal of 553253021 is 120352355.

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 553253021 - 2¹⁰ = 553251997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553253011) 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, 10565 + ... + 34901.

It is an arithmetic number, because the mean of its divisors is an integer number (70093440).

Almost surely, 2^553253021 is an apocalyptic number.

It is an amenable number.

553253021 is a deficient number, since it is larger than the sum of its proper divisors (7494499).

553253021 is a wasteful number, since it uses less digits than its factorization.

553253021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24643.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 553253021 is about 23521.3311910699. The cubic root of 553253021 is about 820.9334111126.

The spelling of 553253021 in words is "five hundred fifty-three million, two hundred fifty-three thousand, twenty-one".