7225555 has 8 divisors (see below), whose sum is σ = 8705952. Its totient is φ = 5756928.

The previous prime is 7225541. The next prime is 7225571. The reversal of 7225555 is 5555227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7225555 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 1527 + ... + 4096.

It is an arithmetic number, because the mean of its divisors is an integer number (1088244).

Almost surely, 2^7225555 is an apocalyptic number.

7225555 is a deficient number, since it is larger than the sum of its proper divisors (1480397).

7225555 is a wasteful number, since it uses less digits than its factorization.

7225555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5885.

The product of its digits is 17500, while the sum is 31.

The square root of 7225555 is about 2688.0392482254. The cubic root of 7225555 is about 193.3260616237.

The spelling of 7225555 in words is "seven million, two hundred twenty-five thousand, five hundred fifty-five".