556339087 has 2 divisors, whose sum is σ = 556339088. Its totient is φ = 556339086.

The previous prime is 556339073. The next prime is 556339099. The reversal of 556339087 is 780933655.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 556339087 - 2¹⁵ = 556306319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556339187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278169543 + 278169544.

It is an arithmetic number, because the mean of its divisors is an integer number (278169544).

Almost surely, 2^556339087 is an apocalyptic number.

556339087 is a deficient number, since it is larger than the sum of its proper divisors (1).

556339087 is an equidigital number, since it uses as much as digits as its factorization.

556339087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 680400, while the sum is 46.

The square root of 556339087 is about 23586.8413951508. The cubic root of 556339087 is about 822.4569808402.

The spelling of 556339087 in words is "five hundred fifty-six million, three hundred thirty-nine thousand, eighty-seven".