87055155 has 40 divisors (see below), whose sum is σ = 170249904. Its totient is φ = 42206400.

The previous prime is 87055153. The next prime is 87055217. The reversal of 87055155 is 55155078.

It is not a de Polignac number, because 87055155 - 2¹ = 87055153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87055151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5316 + ... + 14225.

Almost surely, 2^87055155 is an apocalyptic number.

87055155 is a deficient number, since it is larger than the sum of its proper divisors (83194749).

87055155 is a wasteful number, since it uses less digits than its factorization.

87055155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19569 (or 19560 counting only the distinct ones).

The product of its (nonzero) digits is 35000, while the sum is 36.

The square root of 87055155 is about 9330.3352029817. The cubic root of 87055155 is about 443.1983801019.

The spelling of 87055155 in words is "eighty-seven million, fifty-five thousand, one hundred fifty-five".