542518061 has 2 divisors, whose sum is σ = 542518062. Its totient is φ = 542518060.

The previous prime is 542518021. The next prime is 542518099. The reversal of 542518061 is 160815245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 536848900 + 5669161 = 23170^2 + 2381^2 .

It is a cyclic number.

It is not a de Polignac number, because 542518061 - 2¹⁰ = 542517037 is a prime.

It is a super-2 number, since 2×542518061² = 588651693022399442, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542518021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271259030 + 271259031.

It is an arithmetic number, because the mean of its divisors is an integer number (271259031).

Almost surely, 2^542518061 is an apocalyptic number.

It is an amenable number.

542518061 is a deficient number, since it is larger than the sum of its proper divisors (1).

542518061 is an equidigital number, since it uses as much as digits as its factorization.

542518061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 542518061 is about 23292.0171088723. The cubic root of 542518061 is about 815.5890761686.

The spelling of 542518061 in words is "five hundred forty-two million, five hundred eighteen thousand, sixty-one".