552382021 has 4 divisors (see below), whose sum is σ = 559948972. Its totient is φ = 544815072.

The previous prime is 552382001. The next prime is 552382031. The reversal of 552382021 is 120283255.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 238702500 + 313679521 = 15450^2 + 17711^2 .

It is a cyclic number.

It is not a de Polignac number, because 552382021 - 2¹¹ = 552379973 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 (552382001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3783366 + ... + 3783511.

It is an arithmetic number, because the mean of its divisors is an integer number (139987243).

Almost surely, 2^552382021 is an apocalyptic number.

It is an amenable number.

552382021 is a deficient number, since it is larger than the sum of its proper divisors (7566951).

552382021 is an equidigital number, since it uses as much as digits as its factorization.

552382021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7566950.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 552382021 is about 23502.8087895894. The cubic root of 552382021 is about 820.5023795388.

The spelling of 552382021 in words is "five hundred fifty-two million, three hundred eighty-two thousand, twenty-one".