542648773 has 2 divisors, whose sum is σ = 542648774. Its totient is φ = 542648772.

The previous prime is 542648737. The next prime is 542648779. The reversal of 542648773 is 377846245.

Together with previous prime (542648737) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 309689604 + 232959169 = 17598^2 + 15263^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542648773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542648779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271324386 + 271324387.

It is an arithmetic number, because the mean of its divisors is an integer number (271324387).

Almost surely, 2^542648773 is an apocalyptic number.

It is an amenable number.

542648773 is a deficient number, since it is larger than the sum of its proper divisors (1).

542648773 is an equidigital number, since it uses as much as digits as its factorization.

542648773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1128960, while the sum is 46.

The square root of 542648773 is about 23294.8228797731. The cubic root of 542648773 is about 815.6545724328.

The spelling of 542648773 in words is "five hundred forty-two million, six hundred forty-eight thousand, seven hundred seventy-three".