542236506533 has 2 divisors, whose sum is σ = 542236506534. Its totient is φ = 542236506532.

The previous prime is 542236506439. The next prime is 542236506569. The reversal of 542236506533 is 335605632245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 542192177569 + 44328964 = 736337^2 + 6658^2 .

It is a cyclic number.

It is not a de Polignac number, because 542236506533 - 2¹⁰ = 542236505509 is a prime.

It is a super-2 number, since 2×542236506533² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542236506593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271118253266 + 271118253267.

It is an arithmetic number, because the mean of its divisors is an integer number (271118253267).

Almost surely, 2^542236506533 is an apocalyptic number.

It is an amenable number.

542236506533 is a deficient number, since it is larger than the sum of its proper divisors (1).

542236506533 is an equidigital number, since it uses as much as digits as its factorization.

542236506533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944000, while the sum is 44.

The spelling of 542236506533 in words is "five hundred forty-two billion, two hundred thirty-six million, five hundred six thousand, five hundred thirty-three".