7511342225 has 12 divisors (see below), whose sum is σ = 9406285980. Its totient is φ = 5949576000.

The previous prime is 7511342197. The next prime is 7511342239. The reversal of 7511342225 is 5222431157.

It is a Cunningham number, because it is equal to 86668²+1.

It can be written as a sum of positive squares in 6 ways, for example, as 294499921 + 7216842304 = 17161^2 + 84952^2 .

It is not a de Polignac number, because 7511342225 - 2³⁰ = 6437600401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7511342191 and 7511342200.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1484870 + ... + 1489919.

It is an arithmetic number, because the mean of its divisors is an integer number (783857165).

Almost surely, 2^7511342225 is an apocalyptic number.

It is an amenable number.

7511342225 is a deficient number, since it is larger than the sum of its proper divisors (1894943755).

7511342225 is a wasteful number, since it uses less digits than its factorization.

7511342225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2974900 (or 2974895 counting only the distinct ones).

The product of its digits is 16800, while the sum is 32.

The square root of 7511342225 is about 86668.0000057691. Note that the first 5 decimals coincide. The cubic root of 7511342225 is about 1958.4200638013.

The spelling of 7511342225 in words is "seven billion, five hundred eleven million, three hundred forty-two thousand, two hundred twenty-five".