542006693 has 2 divisors, whose sum is σ = 542006694. Its totient is φ = 542006692.

The previous prime is 542006669. The next prime is 542006719. The reversal of 542006693 is 396600245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 481275844 + 60730849 = 21938^2 + 7793^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542006693 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542006603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271003346 + 271003347.

It is an arithmetic number, because the mean of its divisors is an integer number (271003347).

Almost surely, 2^542006693 is an apocalyptic number.

It is an amenable number.

542006693 is a deficient number, since it is larger than the sum of its proper divisors (1).

542006693 is an equidigital number, since it uses as much as digits as its factorization.

542006693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 542006693 is about 23281.0371976852. The cubic root of 542006693 is about 815.3327422982.

The spelling of 542006693 in words is "five hundred forty-two million, six thousand, six hundred ninety-three".