7530223 has 4 divisors (see below), whose sum is σ = 7857648. Its totient is φ = 7202800.

The previous prime is 7530217. The next prime is 7530239. The reversal of 7530223 is 3220357.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3220357 = 7 ⋅460051.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7530223 is a prime.

It is a Smith number, since the sum of its digits (22) 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.

7530223 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7530194 and 7530203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7530283) 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, 163678 + ... + 163723.

It is an arithmetic number, because the mean of its divisors is an integer number (1964412).

Almost surely, 2^7530223 is an apocalyptic number.

7530223 is a deficient number, since it is larger than the sum of its proper divisors (327425).

7530223 is a wasteful number, since it uses less digits than its factorization.

7530223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327424.

The product of its (nonzero) digits is 1260, while the sum is 22.

The square root of 7530223 is about 2744.1251793604. The cubic root of 7530223 is about 196.0059608766.

The spelling of 7530223 in words is "seven million, five hundred thirty thousand, two hundred twenty-three".