549972717 has 16 divisors (see below), whose sum is σ = 855158400. Its totient is φ = 314269536.

The previous prime is 549972677. The next prime is 549972721. The reversal of 549972717 is 717279945.

It is not a de Polignac number, because 549972717 - 2²⁴ = 533195501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 549972717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549972737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266208 + ... + 268265.

It is an arithmetic number, because the mean of its divisors is an integer number (53447400).

Almost surely, 2^549972717 is an apocalyptic number.

It is an amenable number.

549972717 is a deficient number, since it is larger than the sum of its proper divisors (305185683).

549972717 is an equidigital number, since it uses as much as digits as its factorization.

549972717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534497 (or 534483 counting only the distinct ones).

The product of its digits is 1111320, while the sum is 51.

The square root of 549972717 is about 23451.4971163890. The cubic root of 549972717 is about 819.3077227753.

The spelling of 549972717 in words is "five hundred forty-nine million, nine hundred seventy-two thousand, seven hundred seventeen".