549979523 has 2 divisors, whose sum is σ = 549979524. Its totient is φ = 549979522.

The previous prime is 549979517. The next prime is 549979537. The reversal of 549979523 is 325979945.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 549979523 - 2⁸ = 549979267 is a prime.

It is not a weakly prime, because it can be changed into another prime (549979123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274989761 + 274989762.

It is an arithmetic number, because the mean of its divisors is an integer number (274989762).

Almost surely, 2^549979523 is an apocalyptic number.

549979523 is a deficient number, since it is larger than the sum of its proper divisors (1).

549979523 is an equidigital number, since it uses as much as digits as its factorization.

549979523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3061800, while the sum is 53.

The square root of 549979523 is about 23451.6422239467. The cubic root of 549979523 is about 819.3111024492.

The spelling of 549979523 in words is "five hundred forty-nine million, nine hundred seventy-nine thousand, five hundred twenty-three".