73282725 has 42 divisors (see below), whose sum is σ = 136277426. Its totient is φ = 39074400.

The previous prime is 73282723. The next prime is 73282747. The reversal of 73282725 is 52728237.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 26244 + 73256481 = 162^2 + 8559^2 .

It is not a de Polignac number, because 73282725 - 2¹ = 73282723 is a prime.

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 73282725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73282723) 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 41 ways as a sum of consecutive naturals, for example, 16215 + ... + 20235.

Almost surely, 2^73282725 is an apocalyptic number.

73282725 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

73282725 is a deficient number, since it is larger than the sum of its proper divisors (62994701).

73282725 is an equidigital number, since it uses as much as digits as its factorization.

73282725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4049 (or 4029 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 73282725 is about 8560.5329857434. The cubic root of 73282725 is about 418.4727696469.

The spelling of 73282725 in words is "seventy-three million, two hundred eighty-two thousand, seven hundred twenty-five".