54449917 has 2 divisors, whose sum is σ = 54449918. Its totient is φ = 54449916.

The previous prime is 54449869. The next prime is 54449951. The reversal of 54449917 is 71994445.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27762361 + 26687556 = 5269^2 + 5166^2 .

It is a cyclic number.

It is not a de Polignac number, because 54449917 - 2⁷ = 54449789 is a prime.

It is a super-2 number, since 2×54449917² = 5929586922613778, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54459917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27224958 + 27224959.

It is an arithmetic number, because the mean of its divisors is an integer number (27224959).

Almost surely, 2^54449917 is an apocalyptic number.

It is an amenable number.

54449917 is a deficient number, since it is larger than the sum of its proper divisors (1).

54449917 is an equidigital number, since it uses as much as digits as its factorization.

54449917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 43.

The square root of 54449917 is about 7379.0187016974. The cubic root of 54449917 is about 379.0231535343.

The spelling of 54449917 in words is "fifty-four million, four hundred forty-nine thousand, nine hundred seventeen".