5355721 has 4 divisors (see below), whose sum is σ = 6120832. Its totient is φ = 4590612.

The previous prime is 5355709. The next prime is 5355733. The reversal of 5355721 is 1275535.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1275535 = 5 ⋅255107.

It is an interprime number because it is at equal distance from previous prime (5355709) and next prime (5355733).

It is a cyclic number.

It is not a de Polignac number, because 5355721 - 2⁵ = 5355689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5355721.

It is not an unprimeable number, because it can be changed into a prime (5355761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 382545 + ... + 382558.

It is an arithmetic number, because the mean of its divisors is an integer number (1530208).

Almost surely, 2^5355721 is an apocalyptic number.

It is an amenable number.

5355721 is a deficient number, since it is larger than the sum of its proper divisors (765111).

5355721 is an equidigital number, since it uses as much as digits as its factorization.

5355721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765110.

The product of its digits is 5250, while the sum is 28.

The square root of 5355721 is about 2314.2430727994. The cubic root of 5355721 is about 174.9602195293.

The spelling of 5355721 in words is "five million, three hundred fifty-five thousand, seven hundred twenty-one".