987255505 has 8 divisors (see below), whose sum is σ = 1188517824. Its totient is φ = 787263600.

The previous prime is 987255499. The next prime is 987255527. The reversal of 987255505 is 505552789.

987255505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 987255505 - 2²⁹ = 450384593 is a prime.

It is a Duffinian 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, 315891 + ... + 319000.

It is an arithmetic number, because the mean of its divisors is an integer number (148564728).

Almost surely, 2^987255505 is an apocalyptic number.

It is an amenable number.

987255505 is a deficient number, since it is larger than the sum of its proper divisors (201262319).

987255505 is a wasteful number, since it uses less digits than its factorization.

987255505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635207.

The product of its (nonzero) digits is 630000, while the sum is 46.

The square root of 987255505 is about 31420.6222885544. The cubic root of 987255505 is about 995.7336592212.

The spelling of 987255505 in words is "nine hundred eighty-seven million, two hundred fifty-five thousand, five hundred five".