542733817 has 2 divisors, whose sum is σ = 542733818. Its totient is φ = 542733816.

The previous prime is 542733809. The next prime is 542733847. The reversal of 542733817 is 718337245.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 533425216 + 9308601 = 23096^2 + 3051^2 .

It is a cyclic number.

It is not a de Polignac number, because 542733817 - 2³ = 542733809 is a prime.

It is a super-2 number, since 2×542733817² = 589119992230778978, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 542733817.

It is not a weakly prime, because it can be changed into another prime (542733847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271366908 + 271366909.

It is an arithmetic number, because the mean of its divisors is an integer number (271366909).

Almost surely, 2^542733817 is an apocalyptic number.

It is an amenable number.

542733817 is a deficient number, since it is larger than the sum of its proper divisors (1).

542733817 is an equidigital number, since it uses as much as digits as its factorization.

542733817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 40.

The square root of 542733817 is about 23296.6481923903. The cubic root of 542733817 is about 815.6971800441.

The spelling of 542733817 in words is "five hundred forty-two million, seven hundred thirty-three thousand, eight hundred seventeen".