87158056 has 32 divisors (see below), whose sum is σ = 166492800. Its totient is φ = 42768000.

The previous prime is 87158053. The next prime is 87158117. The reversal of 87158056 is 65085178.

It is not an unprimeable number, because it can be changed into a prime (87158053) 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 7 ways as a sum of consecutive naturals, for example, 115681 + ... + 116431.

It is an arithmetic number, because the mean of its divisors is an integer number (5202900).

Almost surely, 2^87158056 is an apocalyptic number.

It is an amenable number.

87158056 is a deficient number, since it is larger than the sum of its proper divisors (79334744).

87158056 is a wasteful number, since it uses less digits than its factorization.

87158056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009 (or 1005 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 40.

The square root of 87158056 is about 9335.8478993608. The cubic root of 87158056 is about 443.3729345722.

The spelling of 87158056 in words is "eighty-seven million, one hundred fifty-eight thousand, fifty-six".