87055215 has 32 divisors (see below), whose sum is σ = 158832576. Its totient is φ = 40335360.

The previous prime is 87055153. The next prime is 87055217. The reversal of 87055215 is 51255078.

It is a happy number.

It is not a de Polignac number, because 87055215 - 2⁶ = 87055151 is a prime.

It is a super-2 number, since 2×87055215² = 15157220917392450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87055217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9816 + ... + 16445.

It is an arithmetic number, because the mean of its divisors is an integer number (4963518).

Almost surely, 2^87055215 is an apocalyptic number.

87055215 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

87055215 is a deficient number, since it is larger than the sum of its proper divisors (71777361).

87055215 is a wasteful number, since it uses less digits than its factorization.

87055215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26299.

The product of its (nonzero) digits is 14000, while the sum is 33.

The square root of 87055215 is about 9330.3384182997. The cubic root of 87055215 is about 443.1984819220.

The spelling of 87055215 in words is "eighty-seven million, fifty-five thousand, two hundred fifteen".