549767951 has 2 divisors, whose sum is σ = 549767952. Its totient is φ = 549767950.

The previous prime is 549767923. The next prime is 549767957. The reversal of 549767951 is 159767945.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-549767951 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 549767893 and 549767902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (549767957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274883975 + 274883976.

It is an arithmetic number, because the mean of its divisors is an integer number (274883976).

Almost surely, 2^549767951 is an apocalyptic number.

549767951 is a deficient number, since it is larger than the sum of its proper divisors (1).

549767951 is an equidigital number, since it uses as much as digits as its factorization.

549767951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2381400, while the sum is 53.

The square root of 549767951 is about 23447.1309758785. The cubic root of 549767951 is about 819.2060285244.

The spelling of 549767951 in words is "five hundred forty-nine million, seven hundred sixty-seven thousand, nine hundred fifty-one".