5728301581 has 4 divisors (see below), whose sum is σ = 5757379452. Its totient is φ = 5699223712.

The previous prime is 5728301561. The next prime is 5728301587. The reversal of 5728301581 is 1851038275.

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 5281655625 + 446645956 = 72675^2 + 21134^2 .

It is a cyclic number.

It is not a de Polignac number, because 5728301581 - 2²⁷ = 5594083853 is a prime.

It is a super-2 number, since 2×5728301581² = 65626878005774199122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5728301587) 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, 14538640 + ... + 14539033.

It is an arithmetic number, because the mean of its divisors is an integer number (1439344863).

Almost surely, 2^5728301581 is an apocalyptic number.

It is an amenable number.

5728301581 is a deficient number, since it is larger than the sum of its proper divisors (29077871).

5728301581 is a wasteful number, since it uses less digits than its factorization.

5728301581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29077870.

The product of its (nonzero) digits is 67200, while the sum is 40.

The square root of 5728301581 is about 75685.5440688643. The cubic root of 5728301581 is about 1789.2675739071.

The spelling of 5728301581 in words is "five billion, seven hundred twenty-eight million, three hundred one thousand, five hundred eighty-one".