549549947 has 2 divisors, whose sum is σ = 549549948. Its totient is φ = 549549946.

The previous prime is 549549941. The next prime is 549549953. The reversal of 549549947 is 749945945.

It is a balanced prime because it is at equal distance from previous prime (549549941) and next prime (549549953).

It is a cyclic number.

It is not a de Polignac number, because 549549947 - 2¹² = 549545851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 549549892 and 549549901.

It is not a weakly prime, because it can be changed into another prime (549549941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274774973 + 274774974.

It is an arithmetic number, because the mean of its divisors is an integer number (274774974).

Almost surely, 2^549549947 is an apocalyptic number.

549549947 is a deficient number, since it is larger than the sum of its proper divisors (1).

549549947 is an equidigital number, since it uses as much as digits as its factorization.

549549947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8164800, while the sum is 56.

The square root of 549549947 is about 23442.4816732359. The cubic root of 549549947 is about 819.0977320441.

The spelling of 549549947 in words is "five hundred forty-nine million, five hundred forty-nine thousand, nine hundred forty-seven".