550688693 has 2 divisors, whose sum is σ = 550688694. Its totient is φ = 550688692.

The previous prime is 550688683. The next prime is 550688711. The reversal of 550688693 is 396886055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 502566724 + 48121969 = 22418^2 + 6937^2 .

It is a cyclic number.

It is not a de Polignac number, because 550688693 - 2¹² = 550684597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550688623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275344346 + 275344347.

It is an arithmetic number, because the mean of its divisors is an integer number (275344347).

Almost surely, 2^550688693 is an apocalyptic number.

It is an amenable number.

550688693 is a deficient number, since it is larger than the sum of its proper divisors (1).

550688693 is an equidigital number, since it uses as much as digits as its factorization.

550688693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555200, while the sum is 50.

The square root of 550688693 is about 23466.7571896928. The cubic root of 550688693 is about 819.6631042193.

The spelling of 550688693 in words is "five hundred fifty million, six hundred eighty-eight thousand, six hundred ninety-three".