549913939 has 2 divisors, whose sum is σ = 549913940. Its totient is φ = 549913938.

The previous prime is 549913933. The next prime is 549913999. The reversal of 549913939 is 939319945.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 549913939 - 2⁵ = 549913907 is a prime.

It is not a weakly prime, because it can be changed into another prime (549913933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274956969 + 274956970.

It is an arithmetic number, because the mean of its divisors is an integer number (274956970).

Almost surely, 2^549913939 is an apocalyptic number.

549913939 is a deficient number, since it is larger than the sum of its proper divisors (1).

549913939 is an equidigital number, since it uses as much as digits as its factorization.

549913939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1180980, while the sum is 52.

The square root of 549913939 is about 23450.2439006506. The cubic root of 549913939 is about 819.2785340637.

The spelling of 549913939 in words is "five hundred forty-nine million, nine hundred thirteen thousand, nine hundred thirty-nine".