511045555487 has 2 divisors, whose sum is σ = 511045555488. Its totient is φ = 511045555486.

The previous prime is 511045555483. The next prime is 511045555567. The reversal of 511045555487 is 784555540115.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 511045555487 - 2² = 511045555483 is a prime.

It is a super-2 number, since 2×511045555487² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (511045555483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255522777743 + 255522777744.

It is an arithmetic number, because the mean of its divisors is an integer number (255522777744).

Almost surely, 2^511045555487 is an apocalyptic number.

511045555487 is a deficient number, since it is larger than the sum of its proper divisors (1).

511045555487 is an equidigital number, since it uses as much as digits as its factorization.

511045555487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2800000, while the sum is 50.

The spelling of 511045555487 in words is "five hundred eleven billion, forty-five million, five hundred fifty-five thousand, four hundred eighty-seven".