552113021 has 2 divisors, whose sum is σ = 552113022. Its totient is φ = 552113020.

The previous prime is 552112997. The next prime is 552113041. The reversal of 552113021 is 120311255.

It is a happy number.

552113021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (552113041) can be obtained adding 552113021 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 359292025 + 192820996 = 18955^2 + 13886^2 .

It is a cyclic number.

It is not a de Polignac number, because 552113021 - 2¹⁰ = 552111997 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 552112984 and 552113002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (552113041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276056510 + 276056511.

It is an arithmetic number, because the mean of its divisors is an integer number (276056511).

Almost surely, 2^552113021 is an apocalyptic number.

It is an amenable number.

552113021 is a deficient number, since it is larger than the sum of its proper divisors (1).

552113021 is an equidigital number, since it uses as much as digits as its factorization.

552113021 is an odious number, because the sum of its binary digits is odd.

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

The square root of 552113021 is about 23497.0853724457. The cubic root of 552113021 is about 820.3691679995.

Adding to 552113021 its reverse (120311255), we get a palindrome (672424276).

The spelling of 552113021 in words is "five hundred fifty-two million, one hundred thirteen thousand, twenty-one".