5206351118049 has 21 divisors (see below), whose sum is σ = 7806048160963. Its totient is φ = 3470859673992.

The previous prime is 5206351117993. The next prime is 5206351118053. The reversal of 5206351118049 is 9408111536025.

It is a happy number.

The square root of 5206351118049 is 2281743.

It is a perfect power (a square), and thus also a powerful number.

5206351118049 is a `hidden beast` number, since 5 + 2 + 0 + 635 + 1 + 1 + 1 + 8 + 0 + 4 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3578124077649 + 1628227040400 = 1891593^2 + 1276020^2 .

It is not a de Polignac number, because 5206351118049 - 2¹³ = 5206351109857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5206351117995 and 5206351118013.

It is not an unprimeable number, because it can be changed into a prime (5206351118249) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 61564807 + ... + 61649315.

Almost surely, 2^{5206351118049} is an apocalyptic number.

5206351118049 is the 2281743-rd square number.

5206351118049 is the 1140872-nd centered octagonal number.

It is an amenable number.

5206351118049 is a deficient number, since it is larger than the sum of its proper divisors (2599697042914).

5206351118049 is an frugal number, since it uses more digits than its factorization.

5206351118049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169036 (or 84512 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The spelling of 5206351118049 in words is "five trillion, two hundred six billion, three hundred fifty-one million, one hundred eighteen thousand, forty-nine".