555512530987 has 4 divisors (see below), whose sum is σ = 555755433376. Its totient is φ = 555269628600.

The previous prime is 555512530939. The next prime is 555512530999. The reversal of 555512530987 is 789035215555.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-555512530987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (555512530927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121447764 + ... + 121452337.

It is an arithmetic number, because the mean of its divisors is an integer number (138938858344).

Almost surely, 2^555512530987 is an apocalyptic number.

555512530987 is a deficient number, since it is larger than the sum of its proper divisors (242902389).

555512530987 is a wasteful number, since it uses less digits than its factorization.

555512530987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242902388.

The product of its (nonzero) digits is 9450000, while the sum is 55.

The spelling of 555512530987 in words is "five hundred fifty-five billion, five hundred twelve million, five hundred thirty thousand, nine hundred eighty-seven".