549707953 has 4 divisors (see below), whose sum is σ = 555150708. Its totient is φ = 544265200.

The previous prime is 549707923. The next prime is 549707957. The reversal of 549707953 is 359707945.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 359707945 = 5 ⋅71941589.

It can be written as a sum of positive squares in 2 ways, for example, as 343842849 + 205865104 = 18543^2 + 14348^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-549707953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 549707897 and 549707906.

It is not an unprimeable number, because it can be changed into a prime (549707957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2721226 + ... + 2721427.

It is an arithmetic number, because the mean of its divisors is an integer number (138787677).

Almost surely, 2^549707953 is an apocalyptic number.

It is an amenable number.

549707953 is a deficient number, since it is larger than the sum of its proper divisors (5442755).

549707953 is a wasteful number, since it uses less digits than its factorization.

549707953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5442754.

The product of its (nonzero) digits is 1190700, while the sum is 49.

The square root of 549707953 is about 23445.8515093822. The cubic root of 549707953 is about 819.1762265499.

The spelling of 549707953 in words is "five hundred forty-nine million, seven hundred seven thousand, nine hundred fifty-three".