551045977 has 2 divisors, whose sum is σ = 551045978. Its totient is φ = 551045976.

The previous prime is 551045959. The next prime is 551046011. The reversal of 551045977 is 779540155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 418243401 + 132802576 = 20451^2 + 11524^2 .

It is a cyclic number.

It is not a de Polignac number, because 551045977 - 2¹¹ = 551043929 is a prime.

It is not a weakly prime, because it can be changed into another prime (551045927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275522988 + 275522989.

It is an arithmetic number, because the mean of its divisors is an integer number (275522989).

Almost surely, 2^551045977 is an apocalyptic number.

It is an amenable number.

551045977 is a deficient number, since it is larger than the sum of its proper divisors (1).

551045977 is an equidigital number, since it uses as much as digits as its factorization.

551045977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 220500, while the sum is 43.

The square root of 551045977 is about 23474.3685112081. The cubic root of 551045977 is about 819.8403303033.

The spelling of 551045977 in words is "five hundred fifty-one million, forty-five thousand, nine hundred seventy-seven".