549767957 has 2 divisors, whose sum is σ = 549767958. Its totient is φ = 549767956.

The previous prime is 549767951. The next prime is 549767963. The reversal of 549767957 is 759767945.

It is a balanced prime because it is at equal distance from previous prime (549767951) and next prime (549767963).

It can be written as a sum of positive squares in only one way, i.e., 375158161 + 174609796 = 19369^2 + 13214^2 .

It is a cyclic number.

It is not a de Polignac number, because 549767957 - 2¹⁶ = 549702421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 549767896 and 549767905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (549767951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274883978 + 274883979.

It is an arithmetic number, because the mean of its divisors is an integer number (274883979).

Almost surely, 2^549767957 is an apocalyptic number.

It is an amenable number.

549767957 is a deficient number, since it is larger than the sum of its proper divisors (1).

549767957 is an equidigital number, since it uses as much as digits as its factorization.

549767957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16669800, while the sum is 59.

The square root of 549767957 is about 23447.1311038259. The cubic root of 549767957 is about 819.2060315046.

The spelling of 549767957 in words is "five hundred forty-nine million, seven hundred sixty-seven thousand, nine hundred fifty-seven".