5253728729 has 8 divisors (see below), whose sum is σ = 5263578600. Its totient is φ = 5243890176.

The previous prime is 5253728723. The next prime is 5253728731. The reversal of 5253728729 is 9278273525.

It can be written as a sum of positive squares in 4 ways, for example, as 838392025 + 4415336704 = 28955^2 + 66448^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5253728729 - 2⁴ = 5253728713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5253728723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1837469 + ... + 1840325.

It is an arithmetic number, because the mean of its divisors is an integer number (657947325).

Almost surely, 2^5253728729 is an apocalyptic number.

It is an amenable number.

5253728729 is a deficient number, since it is larger than the sum of its proper divisors (9849871).

5253728729 is a wasteful number, since it uses less digits than its factorization.

5253728729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5659.

The product of its digits is 2116800, while the sum is 50.

The square root of 5253728729 is about 72482.6098384985. The cubic root of 5253728729 is about 1738.4246905092.

The spelling of 5253728729 in words is "five billion, two hundred fifty-three million, seven hundred twenty-eight thousand, seven hundred twenty-nine".