5248950209 has 4 divisors (see below), whose sum is σ = 5557712004. Its totient is φ = 4940188416.

The previous prime is 5248950199. The next prime is 5248950211. The reversal of 5248950209 is 9020598425.

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 1767950209 + 3481000000 = 42047^2 + 59000^2 .

It is a cyclic number.

It is not a de Polignac number, because 5248950209 - 2¹² = 5248946113 is a prime.

It is a super-2 number, since 2×5248950209² = 55102956593122287362, which contains 22 as substring.

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 5248950209.

It is not an unprimeable number, because it can be changed into a prime (5248950299) 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, 154380872 + ... + 154380905.

It is an arithmetic number, because the mean of its divisors is an integer number (1389428001).

Almost surely, 2^5248950209 is an apocalyptic number.

It is an amenable number.

5248950209 is a deficient number, since it is larger than the sum of its proper divisors (308761795).

5248950209 is a wasteful number, since it uses less digits than its factorization.

5248950209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308761794.

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 5248950209 is about 72449.6391226347. The cubic root of 5248950209 is about 1737.8974702293.

The spelling of 5248950209 in words is "five billion, two hundred forty-eight million, nine hundred fifty thousand, two hundred nine".