552145109 has 2 divisors, whose sum is σ = 552145110. Its totient is φ = 552145108.

The previous prime is 552145103. The next prime is 552145129. The reversal of 552145109 is 901541255.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 552109009 + 36100 = 23497^2 + 190^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-552145109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (552145103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276072554 + 276072555.

It is an arithmetic number, because the mean of its divisors is an integer number (276072555).

Almost surely, 2^552145109 is an apocalyptic number.

It is an amenable number.

552145109 is a deficient number, since it is larger than the sum of its proper divisors (1).

552145109 is an equidigital number, since it uses as much as digits as its factorization.

552145109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9000, while the sum is 32.

The square root of 552145109 is about 23497.7681706157. The cubic root of 552145109 is about 820.3850605764.

The spelling of 552145109 in words is "five hundred fifty-two million, one hundred forty-five thousand, one hundred nine".