552413021 has 2 divisors, whose sum is σ = 552413022. Its totient is φ = 552413020.

The previous prime is 552412871. The next prime is 552413027. The reversal of 552413021 is 120314255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 320947225 + 231465796 = 17915^2 + 15214^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-552413021 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (552413027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276206510 + 276206511.

It is an arithmetic number, because the mean of its divisors is an integer number (276206511).

Almost surely, 2^552413021 is an apocalyptic number.

It is an amenable number.

552413021 is a deficient number, since it is larger than the sum of its proper divisors (1).

552413021 is an equidigital number, since it uses as much as digits as its factorization.

552413021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 552413021 is about 23503.4682759800. The cubic root of 552413021 is about 820.5177282751.

Adding to 552413021 its reverse (120314255), we get a palindrome (672727276).

The spelling of 552413021 in words is "five hundred fifty-two million, four hundred thirteen thousand, twenty-one".