551106173 has 2 divisors, whose sum is σ = 551106174. Its totient is φ = 551106172.

The previous prime is 551106109. The next prime is 551106209. The reversal of 551106173 is 371601155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 502970329 + 48135844 = 22427^2 + 6938^2 .

It is a cyclic number.

It is not a de Polignac number, because 551106173 - 2⁶ = 551106109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551102173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275553086 + 275553087.

It is an arithmetic number, because the mean of its divisors is an integer number (275553087).

Almost surely, 2^551106173 is an apocalyptic number.

It is an amenable number.

551106173 is a deficient number, since it is larger than the sum of its proper divisors (1).

551106173 is an equidigital number, since it uses as much as digits as its factorization.

551106173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 551106173 is about 23475.6506406106. The cubic root of 551106173 is about 819.8701822054.

The spelling of 551106173 in words is "five hundred fifty-one million, one hundred six thousand, one hundred seventy-three".