549549079 has 2 divisors, whose sum is σ = 549549080. Its totient is φ = 549549078.

The previous prime is 549549041. The next prime is 549549113. The reversal of 549549079 is 970945945.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 549549079 - 2²³ = 541160471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (549549019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274774539 + 274774540.

It is an arithmetic number, because the mean of its divisors is an integer number (274774540).

Almost surely, 2^549549079 is an apocalyptic number.

549549079 is a deficient number, since it is larger than the sum of its proper divisors (1).

549549079 is an equidigital number, since it uses as much as digits as its factorization.

549549079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2041200, while the sum is 52.

The square root of 549549079 is about 23442.4631598303. The cubic root of 549549079 is about 819.0973007959.

The spelling of 549549079 in words is "five hundred forty-nine million, five hundred forty-nine thousand, seventy-nine".