549668051 has 2 divisors, whose sum is σ = 549668052. Its totient is φ = 549668050.

The previous prime is 549667991. The next prime is 549668071. The reversal of 549668051 is 150866945.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 549668051 - 2¹⁸ = 549405907 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 549667993 and 549668011.

It is not a weakly prime, because it can be changed into another prime (549668071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274834025 + 274834026.

It is an arithmetic number, because the mean of its divisors is an integer number (274834026).

Almost surely, 2^549668051 is an apocalyptic number.

549668051 is a deficient number, since it is larger than the sum of its proper divisors (1).

549668051 is an equidigital number, since it uses as much as digits as its factorization.

549668051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 549668051 is about 23445.0005544892. Note that the first 3 decimals coincide. The cubic root of 549668051 is about 819.1564053821.

The spelling of 549668051 in words is "five hundred forty-nine million, six hundred sixty-eight thousand, fifty-one".