87055177 has 24 divisors (see below), whose sum is σ = 101056032. Its totient is φ = 74289600.

The previous prime is 87055153. The next prime is 87055217. The reversal of 87055177 is 77155078.

It is a happy number.

It is not a de Polignac number, because 87055177 - 2¹¹ = 87053129 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (87055277) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1299298 + ... + 1299364.

It is an arithmetic number, because the mean of its divisors is an integer number (4210668).

Almost surely, 2^87055177 is an apocalyptic number.

It is an amenable number.

87055177 is a deficient number, since it is larger than the sum of its proper divisors (14000855).

87055177 is a wasteful number, since it uses less digits than its factorization.

87055177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 68600, while the sum is 40.

The square root of 87055177 is about 9330.3363819318. The cubic root of 87055177 is about 443.1984174359.

Subtracting from 87055177 its reverse (77155078), we obtain a palindrome (9900099).

The spelling of 87055177 in words is "eighty-seven million, fifty-five thousand, one hundred seventy-seven".