551066667 has 12 divisors (see below), whose sum is σ = 747434280. Its totient is φ = 361144192.

The previous prime is 551066657. The next prime is 551066689. The reversal of 551066667 is 766660155.

It is not a de Polignac number, because 551066667 - 2¹⁸ = 550804523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (551066617) 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 in 11 ways as a sum of consecutive naturals, for example, 15942 + ... + 36827.

It is an arithmetic number, because the mean of its divisors is an integer number (62286190).

Almost surely, 2^551066667 is an apocalyptic number.

551066667 is a deficient number, since it is larger than the sum of its proper divisors (196367613).

551066667 is an equidigital number, since it uses as much as digits as its factorization.

551066667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52890 (or 52831 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 42.

The square root of 551066667 is about 23474.8092005026. The cubic root of 551066667 is about 819.8505909620.

It can be divided in two parts, 55 and 1066667, that multiplied together give a palindrome (58666685).

The spelling of 551066667 in words is "five hundred fifty-one million, sixty-six thousand, six hundred sixty-seven".