549493705 has 4 divisors (see below), whose sum is σ = 659392452. Its totient is φ = 439594960.

The previous prime is 549493649. The next prime is 549493709. The reversal of 549493705 is 507394945.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 215737344 + 333756361 = 14688^2 + 18269^2 .

It is a de Polignac number, because none of the positive numbers 2^k-549493705 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (549493709) 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, 54949366 + ... + 54949375.

It is an arithmetic number, because the mean of its divisors is an integer number (164848113).

Almost surely, 2^549493705 is an apocalyptic number.

It is an amenable number.

549493705 is a deficient number, since it is larger than the sum of its proper divisors (109898747).

549493705 is a wasteful number, since it uses less digits than its factorization.

549493705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109898746.

The product of its (nonzero) digits is 680400, while the sum is 46.

The square root of 549493705 is about 23441.2820681805. The cubic root of 549493705 is about 819.0697884110.

It can be divided in two parts, 5494 and 93705, that added together give a palindrome (99199).

The spelling of 549493705 in words is "five hundred forty-nine million, four hundred ninety-three thousand, seven hundred five".