87187255 has 8 divisors (see below), whose sum is σ = 104745024. Its totient is φ = 69669600.

The previous prime is 87187241. The next prime is 87187277. The reversal of 87187255 is 55278178.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87187255 - 2⁷ = 87187127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5016 + ... + 14125.

It is an arithmetic number, because the mean of its divisors is an integer number (13093128).

Almost surely, 2^87187255 is an apocalyptic number.

87187255 is a deficient number, since it is larger than the sum of its proper divisors (17557769).

87187255 is a wasteful number, since it uses less digits than its factorization.

87187255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20057.

The product of its digits is 156800, while the sum is 43.

The square root of 87187255 is about 9337.4115792333. The cubic root of 87187255 is about 443.4224408044.

The spelling of 87187255 in words is "eighty-seven million, one hundred eighty-seven thousand, two hundred fifty-five".