5284355721 has 8 divisors (see below), whose sum is σ = 7058324640. Its totient is φ = 3516645312.

The previous prime is 5284355707. The next prime is 5284355723. The reversal of 5284355721 is 1275534825.

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

It is a de Polignac number, because none of the positive numbers 2^k-5284355721 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5284355723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1562656 + ... + 1566033.

It is an arithmetic number, because the mean of its divisors is an integer number (882290580).

Almost surely, 2^5284355721 is an apocalyptic number.

It is an amenable number.

5284355721 is a deficient number, since it is larger than the sum of its proper divisors (1773968919).

5284355721 is a wasteful number, since it uses less digits than its factorization.

5284355721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3129255.

The product of its digits is 336000, while the sum is 42.

The square root of 5284355721 is about 72693.5741382964. The cubic root of 5284355721 is about 1741.7962382768.

The spelling of 5284355721 in words is "five billion, two hundred eighty-four million, three hundred fifty-five thousand, seven hundred twenty-one".