55005550087 has 2 divisors, whose sum is σ = 55005550088. Its totient is φ = 55005550086.

The previous prime is 55005550063. The next prime is 55005550109. The reversal of 55005550087 is 78005550055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55005550087 - 2¹⁹ = 55005025799 is a prime.

It is a super-2 number, since 2×55005550087² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55005560087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27502775043 + 27502775044.

It is an arithmetic number, because the mean of its divisors is an integer number (27502775044).

Almost surely, 2^55005550087 is an apocalyptic number.

55005550087 is a deficient number, since it is larger than the sum of its proper divisors (1).

55005550087 is an equidigital number, since it uses as much as digits as its factorization.

55005550087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 175000, while the sum is 40.

The spelling of 55005550087 in words is "fifty-five billion, five million, five hundred fifty thousand, eighty-seven".