7225663 has 4 divisors (see below), whose sum is σ = 7650720. Its totient is φ = 6800608.

The previous prime is 7225661. The next prime is 7225667. The reversal of 7225663 is 3665227.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7225663 - 2¹ = 7225661 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7225661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212503 + ... + 212536.

It is an arithmetic number, because the mean of its divisors is an integer number (1912680).

Almost surely, 2^7225663 is an apocalyptic number.

7225663 is a deficient number, since it is larger than the sum of its proper divisors (425057).

7225663 is a wasteful number, since it uses less digits than its factorization.

7225663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425056.

The product of its digits is 15120, while the sum is 31.

The square root of 7225663 is about 2688.0593371427. The cubic root of 7225663 is about 193.3270248305.

The spelling of 7225663 in words is "seven million, two hundred twenty-five thousand, six hundred sixty-three".