550408757 has 2 divisors, whose sum is σ = 550408758. Its totient is φ = 550408756.

The previous prime is 550408717. The next prime is 550408759. The reversal of 550408757 is 757804055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 548215396 + 2193361 = 23414^2 + 1481^2 .

It is a cyclic number.

It is not a de Polignac number, because 550408757 - 2⁸ = 550408501 is a prime.

Together with 550408759, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550408759) 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, 275204378 + 275204379.

It is an arithmetic number, because the mean of its divisors is an integer number (275204379).

Almost surely, 2^550408757 is an apocalyptic number.

It is an amenable number.

550408757 is a deficient number, since it is larger than the sum of its proper divisors (1).

550408757 is an equidigital number, since it uses as much as digits as its factorization.

550408757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 196000, while the sum is 41.

The square root of 550408757 is about 23460.7919090554. The cubic root of 550408757 is about 819.5241920387.

The spelling of 550408757 in words is "five hundred fifty million, four hundred eight thousand, seven hundred fifty-seven".