7225885 has 4 divisors (see below), whose sum is σ = 8671068. Its totient is φ = 5780704.

The previous prime is 7225879. The next prime is 7225913. The reversal of 7225885 is 5885227.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3076516 + 4149369 = 1754^2 + 2037^2 .

It is a cyclic number.

It is not a de Polignac number, because 7225885 - 2⁵ = 7225853 is a prime.

It is an Ulam number.

It is a Duffinian number.

7225885 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722584 + ... + 722593.

It is an arithmetic number, because the mean of its divisors is an integer number (2167767).

Almost surely, 2^7225885 is an apocalyptic number.

It is an amenable number.

7225885 is a deficient number, since it is larger than the sum of its proper divisors (1445183).

7225885 is a wasteful number, since it uses less digits than its factorization.

7225885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445182.

The product of its digits is 44800, while the sum is 37.

The square root of 7225885 is about 2688.1006305568. The cubic root of 7225885 is about 193.3290047254.

The spelling of 7225885 in words is "seven million, two hundred twenty-five thousand, eight hundred eighty-five".