552042021 has 8 divisors (see below), whose sum is σ = 768058560. Its totient is φ = 352026752.

The previous prime is 552042019. The next prime is 552042077. The reversal of 552042021 is 120240255.

It is a happy number.

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 552042021 - 2¹ = 552042019 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552042221) 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, 4000236 + ... + 4000373.

It is an arithmetic number, because the mean of its divisors is an integer number (96007320).

Almost surely, 2^552042021 is an apocalyptic number.

It is an amenable number.

552042021 is a deficient number, since it is larger than the sum of its proper divisors (216016539).

552042021 is a wasteful number, since it uses less digits than its factorization.

552042021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8000635.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 552042021 is about 23495.5744981901. The cubic root of 552042021 is about 820.3340008594.

Adding to 552042021 its reverse (120240255), we get a palindrome (672282276).

The spelling of 552042021 in words is "five hundred fifty-two million, forty-two thousand, twenty-one".