7226551 has 4 divisors (see below), whose sum is σ = 7263432. Its totient is φ = 7189672.

The previous prime is 7226521. The next prime is 7226563. The reversal of 7226551 is 1556227.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7226551 - 2⁵ = 7226519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7226501) 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 3 ways as a sum of consecutive naturals, for example, 18145 + ... + 18538.

It is an arithmetic number, because the mean of its divisors is an integer number (1815858).

Almost surely, 2^7226551 is an apocalyptic number.

7226551 is a deficient number, since it is larger than the sum of its proper divisors (36881).

7226551 is a wasteful number, since it uses less digits than its factorization.

7226551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36880.

The product of its digits is 4200, while the sum is 28.

The square root of 7226551 is about 2688.2245069934. The cubic root of 7226551 is about 193.3349441668.

It can be divided in two parts, 7226 and 551, that added together give a palindrome (7777).

The spelling of 7226551 in words is "seven million, two hundred twenty-six thousand, five hundred fifty-one".