7225523 has 4 divisors (see below), whose sum is σ = 7231128. Its totient is φ = 7219920.

The previous prime is 7225513. The next prime is 7225531. The reversal of 7225523 is 3255227.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 7225523 - 2¹⁰ = 7224499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7225492 and 7225501.

It is not an unprimeable number, because it can be changed into a prime (7225513) 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, 215 + ... + 3807.

It is an arithmetic number, because the mean of its divisors is an integer number (1807782).

Almost surely, 2^7225523 is an apocalyptic number.

7225523 is a deficient number, since it is larger than the sum of its proper divisors (5605).

7225523 is a wasteful number, since it uses less digits than its factorization.

7225523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5604.

The product of its digits is 4200, while the sum is 26.

The square root of 7225523 is about 2688.0332959247. The cubic root of 7225523 is about 193.3257762273.

The spelling of 7225523 in words is "seven million, two hundred twenty-five thousand, five hundred twenty-three".