7251256317 has 16 divisors (see below), whose sum is σ = 9768156480. Its totient is φ = 4784304000.

The previous prime is 7251256277. The next prime is 7251256373. The reversal of 7251256317 is 7136521527.

It is a happy number.

It is not a de Polignac number, because 7251256317 - 2²² = 7247062013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7251251317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1187442 + ... + 1193532.

It is an arithmetic number, because the mean of its divisors is an integer number (610509780).

Almost surely, 2^7251256317 is an apocalyptic number.

It is an amenable number.

7251256317 is a deficient number, since it is larger than the sum of its proper divisors (2516900163).

7251256317 is a wasteful number, since it uses less digits than its factorization.

7251256317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10124.

The product of its digits is 88200, while the sum is 39.

The square root of 7251256317 is about 85154.3088575088. The cubic root of 7251256317 is about 1935.5501080669.

The spelling of 7251256317 in words is "seven billion, two hundred fifty-one million, two hundred fifty-six thousand, three hundred seventeen".