551555167 has 2 divisors, whose sum is σ = 551555168. Its totient is φ = 551555166.

The previous prime is 551555159. The next prime is 551555171. The reversal of 551555167 is 761555155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 551555167 - 2³ = 551555159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551555267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275777583 + 275777584.

It is an arithmetic number, because the mean of its divisors is an integer number (275777584).

Almost surely, 2^551555167 is an apocalyptic number.

551555167 is a deficient number, since it is larger than the sum of its proper divisors (1).

551555167 is an equidigital number, since it uses as much as digits as its factorization.

551555167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 131250, while the sum is 40.

The square root of 551555167 is about 23485.2116660676. The cubic root of 551555167 is about 820.0927750473.

The spelling of 551555167 in words is "five hundred fifty-one million, five hundred fifty-five thousand, one hundred sixty-seven".