550172201 has 2 divisors, whose sum is σ = 550172202. Its totient is φ = 550172200.

The previous prime is 550172197. The next prime is 550172239. The reversal of 550172201 is 102271055.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 499477801 + 50694400 = 22349^2 + 7120^2 .

It is a cyclic number.

It is not a de Polignac number, because 550172201 - 2² = 550172197 is a prime.

It is not a weakly prime, because it can be changed into another prime (550172281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275086100 + 275086101.

It is an arithmetic number, because the mean of its divisors is an integer number (275086101).

Almost surely, 2^550172201 is an apocalyptic number.

It is an amenable number.

550172201 is a deficient number, since it is larger than the sum of its proper divisors (1).

550172201 is an equidigital number, since it uses as much as digits as its factorization.

550172201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 550172201 is about 23455.7498494506. The cubic root of 550172201 is about 819.4067695219.

The spelling of 550172201 in words is "five hundred fifty million, one hundred seventy-two thousand, two hundred one".