4542544541 has 4 divisors (see below), whose sum is σ = 4551469500. Its totient is φ = 4533619584.

The previous prime is 4542544519. The next prime is 4542544577. The reversal of 4542544541 is 1454452454.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3152373316 + 1390171225 = 56146^2 + 37285^2 .

It is a cyclic number.

It is not a de Polignac number, because 4542544541 - 2²² = 4538350237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4542544495 and 4542544504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4542744541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4461716 + ... + 4462733.

It is an arithmetic number, because the mean of its divisors is an integer number (1137867375).

Almost surely, 2^4542544541 is an apocalyptic number.

It is an amenable number.

4542544541 is a deficient number, since it is larger than the sum of its proper divisors (8924959).

4542544541 is an equidigital number, since it uses as much as digits as its factorization.

4542544541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8924958.

The product of its digits is 256000, while the sum is 38.

The square root of 4542544541 is about 67398.4016205132. The cubic root of 4542544541 is about 1656.1502384416.

Adding to 4542544541 its reverse (1454452454), we get a palindrome (5996996995).

The spelling of 4542544541 in words is "four billion, five hundred forty-two million, five hundred forty-four thousand, five hundred forty-one".