549419953 has 2 divisors, whose sum is σ = 549419954. Its totient is φ = 549419952.

The previous prime is 549419951. The next prime is 549419999. The reversal of 549419953 is 359914945.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 474891264 + 74528689 = 21792^2 + 8633^2 .

It is a cyclic number.

It is not a de Polignac number, because 549419953 - 2¹ = 549419951 is a prime.

Together with 549419951, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 549419897 and 549419906.

It is not a weakly prime, because it can be changed into another prime (549419951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274709976 + 274709977.

It is an arithmetic number, because the mean of its divisors is an integer number (274709977).

Almost surely, 2^549419953 is an apocalyptic number.

It is an amenable number.

549419953 is a deficient number, since it is larger than the sum of its proper divisors (1).

549419953 is an equidigital number, since it uses as much as digits as its factorization.

549419953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 874800, while the sum is 49.

The square root of 549419953 is about 23439.7088932435. The cubic root of 549419953 is about 819.0331421083.

The spelling of 549419953 in words is "five hundred forty-nine million, four hundred nineteen thousand, nine hundred fifty-three".