87115502 has 4 divisors (see below), whose sum is σ = 130673256. Its totient is φ = 43557750.

The previous prime is 87115459. The next prime is 87115519. The reversal of 87115502 is 20551178.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×87115502² = 15178221377424008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21778874 + ... + 21778877.

It is an arithmetic number, because the mean of its divisors is an integer number (32668314).

Almost surely, 2^87115502 is an apocalyptic number.

87115502 is a deficient number, since it is larger than the sum of its proper divisors (43557754).

87115502 is a wasteful number, since it uses less digits than its factorization.

87115502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43557753.

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

The square root of 87115502 is about 9333.5685565597. The cubic root of 87115502 is about 443.3007654419.

The spelling of 87115502 in words is "eighty-seven million, one hundred fifteen thousand, five hundred two".