505353545353487 has 2 divisors, whose sum is σ = 505353545353488. Its totient is φ = 505353545353486.

The previous prime is 505353545353471. The next prime is 505353545353507. The reversal of 505353545353487 is 784353545353505.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505353545353487 - 2⁴ = 505353545353471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505353545353087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252676772676743 + 252676772676744.

It is an arithmetic number, because the mean of its divisors is an integer number (252676772676744).

Almost surely, 2^{505353545353487} is an apocalyptic number.

505353545353487 is a deficient number, since it is larger than the sum of its proper divisors (1).

505353545353487 is an equidigital number, since it uses as much as digits as its factorization.

505353545353487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134000000, while the sum is 65.

The spelling of 505353545353487 in words is "five hundred five trillion, three hundred fifty-three billion, five hundred forty-five million, three hundred fifty-three thousand, four hundred eighty-seven".