552131021 has 8 divisors (see below), whose sum is σ = 600161184. Its totient is φ = 504894960.

The previous prime is 552131009. The next prime is 552131039. The reversal of 552131021 is 120131255.

It is a happy number.

552131021 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 552131021 - 2¹⁰ = 552129997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 552130984 and 552131002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552131821) 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, 197075 + ... + 199856.

It is an arithmetic number, because the mean of its divisors is an integer number (75020148).

Almost surely, 2^552131021 is an apocalyptic number.

It is an amenable number.

552131021 is a deficient number, since it is larger than the sum of its proper divisors (48030163).

552131021 is a wasteful number, since it uses less digits than its factorization.

552131021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397051.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 552131021 is about 23497.4683955527. The cubic root of 552131021 is about 820.3780831334.

Adding to 552131021 its reverse (120131255), we get a palindrome (672262276).

The spelling of 552131021 in words is "five hundred fifty-two million, one hundred thirty-one thousand, twenty-one".