542542513 has 2 divisors, whose sum is σ = 542542514. Its totient is φ = 542542512.

The previous prime is 542542499. The next prime is 542542519. The reversal of 542542513 is 315245245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 467078544 + 75463969 = 21612^2 + 8687^2 .

It is a cyclic number.

It is not a de Polignac number, because 542542513 - 2²¹ = 540445361 is a prime.

It is not a weakly prime, because it can be changed into another prime (542542519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271271256 + 271271257.

It is an arithmetic number, because the mean of its divisors is an integer number (271271257).

Almost surely, 2^542542513 is an apocalyptic number.

It is an amenable number.

542542513 is a deficient number, since it is larger than the sum of its proper divisors (1).

542542513 is an equidigital number, since it uses as much as digits as its factorization.

542542513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24000, while the sum is 31.

The square root of 542542513 is about 23292.5420038260. The cubic root of 542542513 is about 815.6013292074.

Adding to 542542513 its reverse (315245245), we get a palindrome (857787758).

The spelling of 542542513 in words is "five hundred forty-two million, five hundred forty-two thousand, five hundred thirteen".