542550066439 has 2 divisors, whose sum is σ = 542550066440. Its totient is φ = 542550066438.

The previous prime is 542550066403. The next prime is 542550066451. The reversal of 542550066439 is 934660055245.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 542550066439 - 2¹¹ = 542550064391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 542550066392 and 542550066401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542550066139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271275033219 + 271275033220.

It is an arithmetic number, because the mean of its divisors is an integer number (271275033220).

Almost surely, 2^542550066439 is an apocalyptic number.

542550066439 is a deficient number, since it is larger than the sum of its proper divisors (1).

542550066439 is an equidigital number, since it uses as much as digits as its factorization.

542550066439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888000, while the sum is 49.

The spelling of 542550066439 in words is "five hundred forty-two billion, five hundred fifty million, sixty-six thousand, four hundred thirty-nine".