5042539 has 2 divisors, whose sum is σ = 5042540. Its totient is φ = 5042538.

The previous prime is 5042507. The next prime is 5042551. The reversal of 5042539 is 9352405.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5042539 - 2⁵ = 5042507 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (5042599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2521269 + 2521270.

It is an arithmetic number, because the mean of its divisors is an integer number (2521270).

Almost surely, 2^5042539 is an apocalyptic number.

5042539 is a deficient number, since it is larger than the sum of its proper divisors (1).

5042539 is an equidigital number, since it uses as much as digits as its factorization.

5042539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 5042539 is about 2245.5598411087. The cubic root of 5042539 is about 171.4811636587.

The spelling of 5042539 in words is "five million, forty-two thousand, five hundred thirty-nine".