549987539 has 2 divisors, whose sum is σ = 549987540. Its totient is φ = 549987538.

The previous prime is 549987527. The next prime is 549987551. The reversal of 549987539 is 935789945.

It is a balanced prime because it is at equal distance from previous prime (549987527) and next prime (549987551).

It is a cyclic number.

It is not a de Polignac number, because 549987539 - 2²⁸ = 281552083 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (549987589) 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 as a sum of consecutive naturals, namely, 274993769 + 274993770.

It is an arithmetic number, because the mean of its divisors is an integer number (274993770).

Almost surely, 2^549987539 is an apocalyptic number.

549987539 is a deficient number, since it is larger than the sum of its proper divisors (1).

549987539 is an equidigital number, since it uses as much as digits as its factorization.

549987539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12247200, while the sum is 59.

The square root of 549987539 is about 23451.8131281997. The cubic root of 549987539 is about 819.3150829404.

The spelling of 549987539 in words is "five hundred forty-nine million, nine hundred eighty-seven thousand, five hundred thirty-nine".