542323543 has 4 divisors (see below), whose sum is σ = 543217600. Its totient is φ = 541429488.

The previous prime is 542323513. The next prime is 542323567. The reversal of 542323543 is 345323245.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 345323245 = 5 ⋅69064649.

It is a cyclic number.

It is not a de Polignac number, because 542323543 - 2¹⁷ = 542192471 is a prime.

It is a super-2 number, since 2×542323543² = 588229650584145698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542323513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446118 + ... + 447331.

It is an arithmetic number, because the mean of its divisors is an integer number (135804400).

Almost surely, 2^542323543 is an apocalyptic number.

542323543 is a deficient number, since it is larger than the sum of its proper divisors (894057).

542323543 is an equidigital number, since it uses as much as digits as its factorization.

542323543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894056.

The product of its digits is 43200, while the sum is 31.

The square root of 542323543 is about 23287.8410978777. The cubic root of 542323543 is about 815.4915889562.

Adding to 542323543 its reverse (345323245), we get a palindrome (887646788).

It can be divided in two parts, 54232 and 3543, that added together give a palindrome (57775).

The spelling of 542323543 in words is "five hundred forty-two million, three hundred twenty-three thousand, five hundred forty-three".