7545355225 has 24 divisors (see below), whose sum is σ = 9922420728. Its totient is φ = 5672140800.

The previous prime is 7545355193. The next prime is 7545355261. The reversal of 7545355225 is 5225535457.

It can be written as a sum of positive squares in 12 ways, for example, as 1672891801 + 5872463424 = 40901^2 + 76632^2 .

It is not a de Polignac number, because 7545355225 - 2⁵ = 7545355193 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, 258577 + ... + 286273.

It is an arithmetic number, because the mean of its divisors is an integer number (413434197).

Almost surely, 2^7545355225 is an apocalyptic number.

It is an amenable number.

7545355225 is a deficient number, since it is larger than the sum of its proper divisors (2377065503).

7545355225 is a wasteful number, since it uses less digits than its factorization.

7545355225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28365 (or 28360 counting only the distinct ones).

The product of its digits is 1050000, while the sum is 43.

The square root of 7545355225 is about 86864.0041962147. The cubic root of 7545355225 is about 1961.3716645333.

The spelling of 7545355225 in words is "seven billion, five hundred forty-five million, three hundred fifty-five thousand, two hundred twenty-five".