511004987 has 2 divisors, whose sum is σ = 511004988. Its totient is φ = 511004986.

The previous prime is 511004957. The next prime is 511005031. The reversal of 511004987 is 789400115.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 511004987 - 2¹⁰ = 511003963 is a prime.

It is a super-2 number, since 2×511004987² = 522252193477740338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (511004957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255502493 + 255502494.

It is an arithmetic number, because the mean of its divisors is an integer number (255502494).

Almost surely, 2^511004987 is an apocalyptic number.

511004987 is a deficient number, since it is larger than the sum of its proper divisors (1).

511004987 is an equidigital number, since it uses as much as digits as its factorization.

511004987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 511004987 is about 22605.4194165912. The cubic root of 511004987 is about 799.4814279890.

The spelling of 511004987 in words is "five hundred eleven million, four thousand, nine hundred eighty-seven".