550808077 has 2 divisors, whose sum is σ = 550808078. Its totient is φ = 550808076.

The previous prime is 550808047. The next prime is 550808099. The reversal of 550808077 is 770808055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 360202441 + 190605636 = 18979^2 + 13806^2 .

It is a cyclic number.

It is not a de Polignac number, because 550808077 - 2⁷ = 550807949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550808047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275404038 + 275404039.

It is an arithmetic number, because the mean of its divisors is an integer number (275404039).

Almost surely, 2^550808077 is an apocalyptic number.

It is an amenable number.

550808077 is a deficient number, since it is larger than the sum of its proper divisors (1).

550808077 is an equidigital number, since it uses as much as digits as its factorization.

550808077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78400, while the sum is 40.

The square root of 550808077 is about 23469.3007352158. The cubic root of 550808077 is about 819.7223316261.

The spelling of 550808077 in words is "five hundred fifty million, eight hundred eight thousand, seventy-seven".