5575721 has 4 divisors (see below), whose sum is σ = 5869200. Its totient is φ = 5282244.

The previous prime is 5575709. The next prime is 5575723. The reversal of 5575721 is 1275755.

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.

It is a cyclic number.

It is not a de Polignac number, because 5575721 - 2¹⁰ = 5574697 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5575723) 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, 146711 + ... + 146748.

It is an arithmetic number, because the mean of its divisors is an integer number (1467300).

Almost surely, 2^5575721 is an apocalyptic number.

It is an amenable number.

5575721 is a deficient number, since it is larger than the sum of its proper divisors (293479).

5575721 is a wasteful number, since it uses less digits than its factorization.

5575721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293478.

The product of its digits is 12250, while the sum is 32.

The square root of 5575721 is about 2361.2964659271. The cubic root of 5575721 is about 177.3237926004.

The spelling of 5575721 in words is "five million, five hundred seventy-five thousand, seven hundred twenty-one".