87518055 has 16 divisors (see below), whose sum is σ = 140459904. Its totient is φ = 46532640.

The previous prime is 87518051. The next prime is 87518077. The reversal of 87518055 is 55081578.

It is not a de Polignac number, because 87518055 - 2² = 87518051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87518051) 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 in 15 ways as a sum of consecutive naturals, for example, 3849 + ... + 13778.

It is an arithmetic number, because the mean of its divisors is an integer number (8778744).

Almost surely, 2^87518055 is an apocalyptic number.

87518055 is a deficient number, since it is larger than the sum of its proper divisors (52941849).

87518055 is a wasteful number, since it uses less digits than its factorization.

87518055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17966.

The product of its (nonzero) digits is 56000, while the sum is 39.

The square root of 87518055 is about 9355.1084975002. The cubic root of 87518055 is about 443.9825342127.

The spelling of 87518055 in words is "eighty-seven million, five hundred eighteen thousand, fifty-five".