542216565523 has 2 divisors, whose sum is σ = 542216565524. Its totient is φ = 542216565522.

The previous prime is 542216565497. The next prime is 542216565559. The reversal of 542216565523 is 325565612245.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 542216565523 - 2¹⁷ = 542216434451 is a prime.

It is not a weakly prime, because it can be changed into another prime (542216565593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271108282761 + 271108282762.

It is an arithmetic number, because the mean of its divisors is an integer number (271108282762).

Almost surely, 2^542216565523 is an apocalyptic number.

542216565523 is a deficient number, since it is larger than the sum of its proper divisors (1).

542216565523 is an equidigital number, since it uses as much as digits as its factorization.

542216565523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160000, while the sum is 46.

The spelling of 542216565523 in words is "five hundred forty-two billion, two hundred sixteen million, five hundred sixty-five thousand, five hundred twenty-three".