73011225 has 36 divisors (see below), whose sum is σ = 140427024. Its totient is φ = 33374880.

The previous prime is 73011193. The next prime is 73011227. The reversal of 73011225 is 52211037.

It is not a de Polignac number, because 73011225 - 2⁵ = 73011193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (73011227) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6259 + ... + 13608.

Almost surely, 2^73011225 is an apocalyptic number.

73011225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

73011225 is a deficient number, since it is larger than the sum of its proper divisors (67415799).

73011225 is a wasteful number, since it uses less digits than its factorization.

73011225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19894 (or 19882 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 73011225 is about 8544.6606135060. The cubic root of 73011225 is about 417.9553400391.

The spelling of 73011225 in words is "seventy-three million, eleven thousand, two hundred twenty-five".