551053187 has 2 divisors, whose sum is σ = 551053188. Its totient is φ = 551053186.

The previous prime is 551053183. The next prime is 551053207. The reversal of 551053187 is 781350155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 551053187 - 2² = 551053183 is a prime.

It is a super-2 number, since 2×551053187² = 607319229805713938, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (551053183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275526593 + 275526594.

It is an arithmetic number, because the mean of its divisors is an integer number (275526594).

Almost surely, 2^551053187 is an apocalyptic number.

551053187 is a deficient number, since it is larger than the sum of its proper divisors (1).

551053187 is an equidigital number, since it uses as much as digits as its factorization.

551053187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21000, while the sum is 35.

The square root of 551053187 is about 23474.5220824621. The cubic root of 551053187 is about 819.8439059414.

The spelling of 551053187 in words is "five hundred fifty-one million, fifty-three thousand, one hundred eighty-seven".