5248721709 has 48 divisors (see below), whose sum is σ = 9949754880. Its totient is φ = 2583096480.

The previous prime is 5248721707. The next prime is 5248721711. The reversal of 5248721709 is 9071278425.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (5248721707) and next prime (5248721711).

It is not a de Polignac number, because 5248721709 - 2¹ = 5248721707 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5248721707) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 186147 + ... + 212480.

It is an arithmetic number, because the mean of its divisors is an integer number (207286560).

Almost surely, 2^5248721709 is an apocalyptic number.

It is an amenable number.

5248721709 is a deficient number, since it is larger than the sum of its proper divisors (4701033171).

5248721709 is a wasteful number, since it uses less digits than its factorization.

5248721709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398670 (or 398667 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 5248721709 is about 72448.0621479968. The cubic root of 5248721709 is about 1737.8722515145.

The spelling of 5248721709 in words is "five billion, two hundred forty-eight million, seven hundred twenty-one thousand, seven hundred nine".