4538540506 has 4 divisors (see below), whose sum is σ = 6807810762. Its totient is φ = 2269270252.

The previous prime is 4538540497. The next prime is 4538540519. The reversal of 4538540506 is 6050458354.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6050458354 = 2 ⋅3025229177.

It can be written as a sum of positive squares in only one way, i.e., 4504423225 + 34117281 = 67115^2 + 5841^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1134635125 + ... + 1134635128.

Almost surely, 2^4538540506 is an apocalyptic number.

4538540506 is a deficient number, since it is larger than the sum of its proper divisors (2269270256).

4538540506 is a wasteful number, since it uses less digits than its factorization.

4538540506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2269270255.

The product of its (nonzero) digits is 288000, while the sum is 40.

The square root of 4538540506 is about 67368.6908437443. The cubic root of 4538540506 is about 1655.6634897482.

The spelling of 4538540506 in words is "four billion, five hundred thirty-eight million, five hundred forty thousand, five hundred six".