73320225 has 24 divisors (see below), whose sum is σ = 132244512. Its totient is φ = 35548800.

The previous prime is 73320223. The next prime is 73320229. The reversal of 73320225 is 52202337.

It is not a de Polignac number, because 73320225 - 2¹ = 73320223 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 73320195 and 73320204.

It is not an unprimeable number, because it can be changed into a prime (73320223) 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 23 ways as a sum of consecutive naturals, for example, 43612 + ... + 45261.

It is an arithmetic number, because the mean of its divisors is an integer number (5510188).

Almost surely, 2^73320225 is an apocalyptic number.

73320225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

73320225 is a deficient number, since it is larger than the sum of its proper divisors (58924287).

73320225 is a wasteful number, since it uses less digits than its factorization.

73320225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88897 (or 88892 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 73320225 is about 8562.7229897971. The cubic root of 73320225 is about 418.5441373209.

The spelling of 73320225 in words is "seventy-three million, three hundred twenty thousand, two hundred twenty-five".