7228072225 has 24 divisors (see below), whose sum is σ = 9923570208. Its totient is φ = 5178307200.

The previous prime is 7228072183. The next prime is 7228072231. The reversal of 7228072225 is 5222708227.

It is not a de Polignac number, because 7228072225 - 2⁷ = 7228072097 is a prime.

It is a Duffinian 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, 177724 + ... + 214573.

It is an arithmetic number, because the mean of its divisors is an integer number (413482092).

Almost surely, 2^7228072225 is an apocalyptic number.

It is an amenable number.

7228072225 is a deficient number, since it is larger than the sum of its proper divisors (2695497983).

7228072225 is a wasteful number, since it uses less digits than its factorization.

7228072225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392385 (or 392380 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 37.

The square root of 7228072225 is about 85018.0699910319. The cubic root of 7228072225 is about 1933.4850920475.

The spelling of 7228072225 in words is "seven billion, two hundred twenty-eight million, seventy-two thousand, two hundred twenty-five".