551512043 has 2 divisors, whose sum is σ = 551512044. Its totient is φ = 551512042.

The previous prime is 551512001. The next prime is 551512051. The reversal of 551512043 is 340215155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 551512043 - 2¹⁸ = 551249899 is a prime.

It is not a weakly prime, because it can be changed into another prime (551512243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275756021 + 275756022.

It is an arithmetic number, because the mean of its divisors is an integer number (275756022).

Almost surely, 2^551512043 is an apocalyptic number.

551512043 is a deficient number, since it is larger than the sum of its proper divisors (1).

551512043 is an equidigital number, since it uses as much as digits as its factorization.

551512043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 551512043 is about 23484.2935384482. The cubic root of 551512043 is about 820.0714011790.

Adding to 551512043 its reverse (340215155), we get a palindrome (891727198).

The spelling of 551512043 in words is "five hundred fifty-one million, five hundred twelve thousand, forty-three".