5539973 has 4 divisors (see below), whose sum is σ = 5689740. Its totient is φ = 5390208.

The previous prime is 5539967. The next prime is 5539981. The reversal of 5539973 is 3799355.

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 4870849 + 669124 = 2207^2 + 818^2 .

It is a cyclic number.

It is not a de Polignac number, because 5539973 - 2¹² = 5535877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5539973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5539903) 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, 74828 + ... + 74901.

It is an arithmetic number, because the mean of its divisors is an integer number (1422435).

Almost surely, 2^5539973 is an apocalyptic number.

It is an amenable number.

5539973 is a deficient number, since it is larger than the sum of its proper divisors (149767).

5539973 is a wasteful number, since it uses less digits than its factorization.

5539973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149766.

The product of its digits is 127575, while the sum is 41.

The square root of 5539973 is about 2353.7147235806. The cubic root of 5539973 is about 176.9440171085.

The spelling of 5539973 in words is "five million, five hundred thirty-nine thousand, nine hundred seventy-three".