73255257 has 6 divisors (see below), whose sum is σ = 105813162. Its totient is φ = 48836832.

The previous prime is 73255223. The next prime is 73255267. The reversal of 73255257 is 75255237.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 69705801 + 3549456 = 8349^2 + 1884^2 .

It is not a de Polignac number, because 73255257 - 2⁷ = 73255129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73255267) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4069728 + ... + 4069745.

It is an arithmetic number, because the mean of its divisors is an integer number (17635527).

Almost surely, 2^73255257 is an apocalyptic number.

It is an amenable number.

73255257 is a deficient number, since it is larger than the sum of its proper divisors (32557905).

73255257 is a wasteful number, since it uses less digits than its factorization.

73255257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8139479 (or 8139476 counting only the distinct ones).

The product of its digits is 73500, while the sum is 36.

The square root of 73255257 is about 8558.9284960210. The cubic root of 73255257 is about 418.4204788036.

The spelling of 73255257 in words is "seventy-three million, two hundred fifty-five thousand, two hundred fifty-seven".