542345553 has 6 divisors (see below), whose sum is σ = 783388034. Its totient is φ = 361563696.

The previous prime is 542345513. The next prime is 542345563. The reversal of 542345553 is 355543245.

It can be written as a sum of positive squares in only one way, i.e., 428986944 + 113358609 = 20712^2 + 10647^2 .

It is not a de Polignac number, because 542345553 - 2¹⁰ = 542344529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (542345513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30130300 + ... + 30130317.

Almost surely, 2^542345553 is an apocalyptic number.

It is an amenable number.

542345553 is a deficient number, since it is larger than the sum of its proper divisors (241042481).

542345553 is a wasteful number, since it uses less digits than its factorization.

542345553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60260623 (or 60260620 counting only the distinct ones).

The product of its digits is 180000, while the sum is 36.

The square root of 542345553 is about 23288.3136572831. The cubic root of 542345553 is about 815.5026209482.

Adding to 542345553 its reverse (355543245), we get a palindrome (897888798).

The spelling of 542345553 in words is "five hundred forty-two million, three hundred forty-five thousand, five hundred fifty-three".