53223325 has 6 divisors (see below), whose sum is σ = 65996954. Its totient is φ = 42578640.

The previous prime is 53223307. The next prime is 53223329. The reversal of 53223325 is 52332235.

It can be written as a sum of positive squares in 3 ways, for example, as 16475481 + 36747844 = 4059^2 + 6062^2 .

It is not a de Polignac number, because 53223325 - 2⁷ = 53223197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 2128933 = 53223325 / (5 + 3 + 2 + 2 + 3 + 3 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53223325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53223329) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1064442 + ... + 1064491.

Almost surely, 2^53223325 is an apocalyptic number.

It is an amenable number.

53223325 is a deficient number, since it is larger than the sum of its proper divisors (12773629).

53223325 is a wasteful number, since it uses less digits than its factorization.

53223325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128943 (or 2128938 counting only the distinct ones).

The product of its digits is 5400, while the sum is 25.

The square root of 53223325 is about 7295.4317898257. The cubic root of 53223325 is about 376.1554288938.

The spelling of 53223325 in words is "fifty-three million, two hundred twenty-three thousand, three hundred twenty-five".