549572993 has 2 divisors, whose sum is σ = 549572994. Its totient is φ = 549572992.

The previous prime is 549572987. The next prime is 549573041. The reversal of 549572993 is 399275945.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 356001424 + 193571569 = 18868^2 + 13913^2 .

It is a cyclic number.

It is not a de Polignac number, because 549572993 - 2⁴ = 549572977 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (549572983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274786496 + 274786497.

It is an arithmetic number, because the mean of its divisors is an integer number (274786497).

Almost surely, 2^549572993 is an apocalyptic number.

It is an amenable number.

549572993 is a deficient number, since it is larger than the sum of its proper divisors (1).

549572993 is an equidigital number, since it uses as much as digits as its factorization.

549572993 is an evil number, because the sum of its binary digits is even.

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

The square root of 549572993 is about 23442.9732116044. The cubic root of 549572993 is about 819.1091818147.

The spelling of 549572993 in words is "five hundred forty-nine million, five hundred seventy-two thousand, nine hundred ninety-three".