551555159 has 2 divisors, whose sum is σ = 551555160. Its totient is φ = 551555158.

The previous prime is 551555143. The next prime is 551555167. The reversal of 551555159 is 951555155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 551555159 - 2⁴ = 551555143 is a prime.

It is a super-3 number, since 3×551555159³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551555119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275777579 + 275777580.

It is an arithmetic number, because the mean of its divisors is an integer number (275777580).

Almost surely, 2^551555159 is an apocalyptic number.

551555159 is a deficient number, since it is larger than the sum of its proper divisors (1).

551555159 is an equidigital number, since it uses as much as digits as its factorization.

551555159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 140625, while the sum is 41.

The square root of 551555159 is about 23485.2114957477. The cubic root of 551555159 is about 820.0927710823.

The spelling of 551555159 in words is "five hundred fifty-one million, five hundred fifty-five thousand, one hundred fifty-nine".