551280727 has 2 divisors, whose sum is σ = 551280728. Its totient is φ = 551280726.

The previous prime is 551280713. The next prime is 551280731. The reversal of 551280727 is 727082155.

551280727 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-551280727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551280127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275640363 + 275640364.

It is an arithmetic number, because the mean of its divisors is an integer number (275640364).

Almost surely, 2^551280727 is an apocalyptic number.

551280727 is a deficient number, since it is larger than the sum of its proper divisors (1).

551280727 is an equidigital number, since it uses as much as digits as its factorization.

551280727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39200, while the sum is 37.

The square root of 551280727 is about 23479.3681133032. The cubic root of 551280727 is about 819.9567332912.

The spelling of 551280727 in words is "five hundred fifty-one million, two hundred eighty thousand, seven hundred twenty-seven".