505030211987 has 8 divisors (see below), whose sum is σ = 607555142400. Its totient is φ = 410099720904.

The previous prime is 505030211981. The next prime is 505030212019. The reversal of 505030211987 is 789112030505.

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

It is a cyclic number.

It is not a de Polignac number, because 505030211987 - 2⁸ = 505030211731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505030211981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1898609687 + ... + 1898609952.

It is an arithmetic number, because the mean of its divisors is an integer number (75944392800).

Almost surely, 2^505030211987 is an apocalyptic number.

505030211987 is a deficient number, since it is larger than the sum of its proper divisors (102524930413).

505030211987 is a wasteful number, since it uses less digits than its factorization.

505030211987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3797219665.

The product of its (nonzero) digits is 75600, while the sum is 41.

The spelling of 505030211987 in words is "five hundred five billion, thirty million, two hundred eleven thousand, nine hundred eighty-seven".