551786671 has 2 divisors, whose sum is σ = 551786672. Its totient is φ = 551786670.

The previous prime is 551786647. The next prime is 551786687. The reversal of 551786671 is 176687155.

551786671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551786671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551786471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275893335 + 275893336.

It is an arithmetic number, because the mean of its divisors is an integer number (275893336).

Almost surely, 2^551786671 is an apocalyptic number.

551786671 is a deficient number, since it is larger than the sum of its proper divisors (1).

551786671 is an equidigital number, since it uses as much as digits as its factorization.

551786671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 352800, while the sum is 46.

The square root of 551786671 is about 23490.1398676125. The cubic root of 551786671 is about 820.2074980541.

The spelling of 551786671 in words is "five hundred fifty-one million, seven hundred eighty-six thousand, six hundred seventy-one".