7255281 has 32 divisors (see below), whose sum is σ = 11243520. Its totient is φ = 4152720.

The previous prime is 7255267. The next prime is 7255301. The reversal of 7255281 is 1825527.

It is not a de Polignac number, because 7255281 - 2⁷ = 7255153 is a prime.

It is a super-2 number, since 2×7255281² = 105278204777922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7255201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91800 + ... + 91878.

It is an arithmetic number, because the mean of its divisors is an integer number (351360).

Almost surely, 2^7255281 is an apocalyptic number.

It is an amenable number.

7255281 is a deficient number, since it is larger than the sum of its proper divisors (3988239).

7255281 is a wasteful number, since it uses less digits than its factorization.

7255281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 116 counting only the distinct ones).

The product of its digits is 5600, while the sum is 30.

The square root of 7255281 is about 2693.5628821321. The cubic root of 7255281 is about 193.5908139581.

It can be divided in two parts, 725 and 5281, that added together give a palindrome (6006).

The spelling of 7255281 in words is "seven million, two hundred fifty-five thousand, two hundred eighty-one".