7287255 has 24 divisors (see below), whose sum is σ = 12825072. Its totient is φ = 3826944.

The previous prime is 7287233. The next prime is 7287277. The reversal of 7287255 is 5527827.

It is an interprime number because it is at equal distance from previous prime (7287233) and next prime (7287277).

It is not a de Polignac number, because 7287255 - 2¹⁴ = 7270871 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1807 + ... + 4223.

It is an arithmetic number, because the mean of its divisors is an integer number (534378).

Almost surely, 2^7287255 is an apocalyptic number.

7287255 is a deficient number, since it is larger than the sum of its proper divisors (5537817).

7287255 is a wasteful number, since it uses less digits than its factorization.

7287255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2495 (or 2492 counting only the distinct ones).

The product of its digits is 39200, while the sum is 36.

The square root of 7287255 is about 2699.4916188053. The cubic root of 7287255 is about 193.8747819150.

It can be divided in two parts, 72872 and 55, that added together give a palindrome (72927).

The spelling of 7287255 in words is "seven million, two hundred eighty-seven thousand, two hundred fifty-five".