87115250 has 16 divisors (see below), whose sum is σ = 163080216. Its totient is φ = 34846000.

The previous prime is 87115243. The next prime is 87115267. The reversal of 87115250 is 5251178.

It can be written as a sum of positive squares in 4 ways, for example, as 56235001 + 30880249 = 7499^2 + 5557^2 .

It is an unprimeable number.

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, 173981 + ... + 174480.

Almost surely, 2^87115250 is an apocalyptic number.

87115250 is a deficient number, since it is larger than the sum of its proper divisors (75964966).

87115250 is a wasteful number, since it uses less digits than its factorization.

87115250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348478 (or 348468 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 29.

The square root of 87115250 is about 9333.5550568902. Note that the first 3 decimals coincide. The cubic root of 87115250 is about 443.3003379945.

The spelling of 87115250 in words is "eighty-seven million, one hundred fifteen thousand, two hundred fifty".