73280275 has 6 divisors (see below), whose sum is σ = 90867572. Its totient is φ = 58624200.

The previous prime is 73280269. The next prime is 73280279. The reversal of 73280275 is 57208237.

It is not a de Polignac number, because 73280275 - 2³ = 73280267 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 73280275.

It is not an unprimeable number, because it can be changed into a prime (73280279) 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 5 ways as a sum of consecutive naturals, for example, 1465581 + ... + 1465630.

Almost surely, 2^73280275 is an apocalyptic number.

73280275 is a deficient number, since it is larger than the sum of its proper divisors (17587297).

73280275 is a wasteful number, since it uses less digits than its factorization.

73280275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2931221 (or 2931216 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 73280275 is about 8560.3898859807. The cubic root of 73280275 is about 418.4681061117.

The spelling of 73280275 in words is "seventy-three million, two hundred eighty thousand, two hundred seventy-five".