549513077 has 2 divisors, whose sum is σ = 549513078. Its totient is φ = 549513076.

The previous prime is 549513067. The next prime is 549513089. The reversal of 549513077 is 770315945.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 379236676 + 170276401 = 19474^2 + 13049^2 .

It is a cyclic number.

It is not a de Polignac number, because 549513077 - 2⁴ = 549513061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (549513047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274756538 + 274756539.

It is an arithmetic number, because the mean of its divisors is an integer number (274756539).

Almost surely, 2^549513077 is an apocalyptic number.

It is an amenable number.

549513077 is a deficient number, since it is larger than the sum of its proper divisors (1).

549513077 is an equidigital number, since it uses as much as digits as its factorization.

549513077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 132300, while the sum is 41.

The square root of 549513077 is about 23441.6952671943. The cubic root of 549513077 is about 819.0794135340.

The spelling of 549513077 in words is "five hundred forty-nine million, five hundred thirteen thousand, seventy-seven".