7221053 has 8 divisors (see below), whose sum is σ = 8293440. Its totient is φ = 6158880.

The previous prime is 7221041. The next prime is 7221077. The reversal of 7221053 is 3501227.

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

It is not a de Polignac number, because 7221053 - 2⁴ = 7221037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7221013) 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, 968 + ... + 3921.

It is an arithmetic number, because the mean of its divisors is an integer number (1036680).

Almost surely, 2^7221053 is an apocalyptic number.

It is an amenable number.

7221053 is a deficient number, since it is larger than the sum of its proper divisors (1072387).

7221053 is a wasteful number, since it uses less digits than its factorization.

7221053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5107.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 7221053 is about 2687.2017043758. The cubic root of 7221053 is about 193.2859016289.

The spelling of 7221053 in words is "seven million, two hundred twenty-one thousand, fifty-three".