5206549 has 4 divisors (see below), whose sum is σ = 5333580. Its totient is φ = 5079520.

The previous prime is 5206541. The next prime is 5206567. The reversal of 5206549 is 9456025.

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 2196324 + 3010225 = 1482^2 + 1735^2 .

It is a cyclic number.

It is not a de Polignac number, because 5206549 - 2³ = 5206541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5206549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5206541) 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, 63454 + ... + 63535.

It is an arithmetic number, because the mean of its divisors is an integer number (1333395).

Almost surely, 2^5206549 is an apocalyptic number.

It is an amenable number.

5206549 is a deficient number, since it is larger than the sum of its proper divisors (127031).

5206549 is a wasteful number, since it uses less digits than its factorization.

5206549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127030.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 5206549 is about 2281.7863616036. The cubic root of 5206549 is about 173.3205213246.

The spelling of 5206549 in words is "five million, two hundred six thousand, five hundred forty-nine".