87085055 has 4 divisors (see below), whose sum is σ = 104502072. Its totient is φ = 69668040.

The previous prime is 87085039. The next prime is 87085069. The reversal of 87085055 is 55058078.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 87085055 - 2⁴ = 87085039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8708501 + ... + 8708510.

It is an arithmetic number, because the mean of its divisors is an integer number (26125518).

Almost surely, 2^87085055 is an apocalyptic number.

87085055 is a deficient number, since it is larger than the sum of its proper divisors (17417017).

87085055 is a wasteful number, since it uses less digits than its factorization.

87085055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17417016.

The product of its (nonzero) digits is 56000, while the sum is 38.

The square root of 87085055 is about 9331.9373658421. The cubic root of 87085055 is about 443.2491146610.

The spelling of 87085055 in words is "eighty-seven million, eighty-five thousand, fifty-five".