7251717272 has 16 divisors (see below), whose sum is σ = 13704034560. Its totient is φ = 3597308064.

The previous prime is 7251717259. The next prime is 7251717301. The reversal of 7251717272 is 2727171527.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3567743 + ... + 3569774.

It is an arithmetic number, because the mean of its divisors is an integer number (856502160).

Almost surely, 2^7251717272 is an apocalyptic number.

It is an amenable number.

7251717272 is a deficient number, since it is larger than the sum of its proper divisors (6452317288).

7251717272 is a wasteful number, since it uses less digits than its factorization.

7251717272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7137650 (or 7137646 counting only the distinct ones).

The product of its digits is 96040, while the sum is 41.

The square root of 7251717272 is about 85157.0154009639. The cubic root of 7251717272 is about 1935.5911208495.

Adding to 7251717272 its reverse (2727171527), we get a palindrome (9978888799).

The spelling of 7251717272 in words is "seven billion, two hundred fifty-one million, seven hundred seventeen thousand, two hundred seventy-two".