7522223 has 4 divisors (see below), whose sum is σ = 7781640. Its totient is φ = 7262808.

The previous prime is 7522217. The next prime is 7522231. The reversal of 7522223 is 3222257.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3222257 = 1061 ⋅3037.

It is a cyclic number.

It is not a de Polignac number, because 7522223 - 2⁶ = 7522159 is a prime.

It is a d-powerful number, because it can be written as 7⁶ + 5 + 2⁵ + 2⁷ + 2¹⁹ + 2²¹ + 3¹⁴ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7522283) 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, 129665 + ... + 129722.

It is an arithmetic number, because the mean of its divisors is an integer number (1945410).

Almost surely, 2^7522223 is an apocalyptic number.

7522223 is a deficient number, since it is larger than the sum of its proper divisors (259417).

7522223 is a wasteful number, since it uses less digits than its factorization.

7522223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259416.

The product of its digits is 1680, while the sum is 23.

The square root of 7522223 is about 2742.6671325555. The cubic root of 7522223 is about 195.9365249823.

The spelling of 7522223 in words is "seven million, five hundred twenty-two thousand, two hundred twenty-three".