555280087 has 2 divisors, whose sum is σ = 555280088. Its totient is φ = 555280086.

The previous prime is 555280057. The next prime is 555280181. The reversal of 555280087 is 780082555.

555280087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-555280087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (555280057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277640043 + 277640044.

It is an arithmetic number, because the mean of its divisors is an integer number (277640044).

Almost surely, 2^555280087 is an apocalyptic number.

555280087 is a deficient number, since it is larger than the sum of its proper divisors (1).

555280087 is an equidigital number, since it uses as much as digits as its factorization.

555280087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112000, while the sum is 40.

The square root of 555280087 is about 23564.3817444889. The cubic root of 555280087 is about 821.9347962045.

The spelling of 555280087 in words is "five hundred fifty-five million, two hundred eighty thousand, eighty-seven".