5247724820 has 24 divisors (see below), whose sum is σ = 11867932104. Its totient is φ = 1937621376.

The previous prime is 5247724819. The next prime is 5247724831. The reversal of 5247724820 is 284277425.

It can be written as a sum of positive squares in 4 ways, for example, as 91623184 + 5156101636 = 9572^2 + 71806^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10091519 + ... + 10092038.

It is an arithmetic number, because the mean of its divisors is an integer number (494497171).

Almost surely, 2^5247724820 is an apocalyptic number.

It is an amenable number.

5247724820 is an abundant number, since it is smaller than the sum of its proper divisors (6620207284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5247724820 is a wasteful number, since it uses less digits than its factorization.

5247724820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20183579 (or 20183577 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 41.

The square root of 5247724820 is about 72441.1817959923. The cubic root of 5247724820 is about 1737.7622199347.

The spelling of 5247724820 in words is "five billion, two hundred forty-seven million, seven hundred twenty-four thousand, eight hundred twenty".