73111225 has 18 divisors (see below), whose sum is σ = 99652910. Its totient is φ = 53169600.

The previous prime is 73111211. The next prime is 73111229. The reversal of 73111225 is 52211137.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 21040569 + 52070656 = 4587^2 + 7216^2 .

It is not a de Polignac number, because 73111225 - 2¹¹ = 73109177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73111196 and 73111205.

It is not an unprimeable number, because it can be changed into a prime (73111229) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 9060 + ... + 15109.

Almost surely, 2^73111225 is an apocalyptic number.

It is an amenable number.

73111225 is a deficient number, since it is larger than the sum of its proper divisors (26541685).

73111225 is a wasteful number, since it uses less digits than its factorization.

73111225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24201 (or 24185 counting only the distinct ones).

The product of its digits is 420, while the sum is 22.

The square root of 73111225 is about 8550.5102186946. The cubic root of 73111225 is about 418.1460708330.

It can be divided in two parts, 731112 and 25, that added together give a palindrome (731137).

The spelling of 73111225 in words is "seventy-three million, one hundred eleven thousand, two hundred twenty-five".