551056091 has 2 divisors, whose sum is σ = 551056092. Its totient is φ = 551056090.

The previous prime is 551056073. The next prime is 551056111. The reversal of 551056091 is 190650155.

551056091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 551056091 - 2¹⁰ = 551055067 is a prime.

It is not a weakly prime, because it can be changed into another prime (551056001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275528045 + 275528046.

It is an arithmetic number, because the mean of its divisors is an integer number (275528046).

Almost surely, 2^551056091 is an apocalyptic number.

551056091 is a deficient number, since it is larger than the sum of its proper divisors (1).

551056091 is an equidigital number, since it uses as much as digits as its factorization.

551056091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6750, while the sum is 32.

The square root of 551056091 is about 23474.5839366750. The cubic root of 551056091 is about 819.8453461064.

The spelling of 551056091 in words is "five hundred fifty-one million, fifty-six thousand, ninety-one".