542817263 has 2 divisors, whose sum is σ = 542817264. Its totient is φ = 542817262.

The previous prime is 542817257. The next prime is 542817283. The reversal of 542817263 is 362718245.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 542817263 - 2⁶ = 542817199 is a prime.

It is a super-2 number, since 2×542817263² = 589301162021622338, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542817283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271408631 + 271408632.

It is an arithmetic number, because the mean of its divisors is an integer number (271408632).

Almost surely, 2^542817263 is an apocalyptic number.

542817263 is a deficient number, since it is larger than the sum of its proper divisors (1).

542817263 is an equidigital number, since it uses as much as digits as its factorization.

542817263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 38.

The square root of 542817263 is about 23298.4390678861. The cubic root of 542817263 is about 815.7389827207.

The spelling of 542817263 in words is "five hundred forty-two million, eight hundred seventeen thousand, two hundred sixty-three".