542253561523 has 2 divisors, whose sum is σ = 542253561524. Its totient is φ = 542253561522.

The previous prime is 542253561511. The next prime is 542253561547. The reversal of 542253561523 is 325165352245.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 542253561523 - 2³³ = 533663626931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 542253561523.

It is not a weakly prime, because it can be changed into another prime (542253561323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271126780761 + 271126780762.

It is an arithmetic number, because the mean of its divisors is an integer number (271126780762).

Almost surely, 2^542253561523 is an apocalyptic number.

542253561523 is a deficient number, since it is larger than the sum of its proper divisors (1).

542253561523 is an equidigital number, since it uses as much as digits as its factorization.

542253561523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080000, while the sum is 43.

The spelling of 542253561523 in words is "five hundred forty-two billion, two hundred fifty-three million, five hundred sixty-one thousand, five hundred twenty-three".