552055391 has 2 divisors, whose sum is σ = 552055392. Its totient is φ = 552055390.

The previous prime is 552055381. The next prime is 552055403. The reversal of 552055391 is 193550255.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 552055391 - 2²² = 547861087 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 (552055321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276027695 + 276027696.

It is an arithmetic number, because the mean of its divisors is an integer number (276027696).

Almost surely, 2^552055391 is an apocalyptic number.

552055391 is a deficient number, since it is larger than the sum of its proper divisors (1).

552055391 is an equidigital number, since it uses as much as digits as its factorization.

552055391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33750, while the sum is 35.

The square root of 552055391 is about 23495.8590181334. The cubic root of 552055391 is about 820.3406234090.

The spelling of 552055391 in words is "five hundred fifty-two million, fifty-five thousand, three hundred ninety-one".