7256172051025 has 12 divisors (see below), whose sum is σ = 9017171043804. Its totient is φ = 5792345576000.

The previous prime is 7256172050957. The next prime is 7256172051049. The reversal of 7256172051025 is 5201502716527.

It can be written as a sum of positive squares in 6 ways, for example, as 1497559167504 + 5758612883521 = 1223748^2 + 2399711^2 .

It is not a de Polignac number, because 7256172051025 - 2²⁹ = 7255635180113 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 314789866 + ... + 314812915.

It is an arithmetic number, because the mean of its divisors is an integer number (751430920317).

Almost surely, 2^{7256172051025} is an apocalyptic number.

It is an amenable number.

7256172051025 is a deficient number, since it is larger than the sum of its proper divisors (1760998992779).

7256172051025 is a wasteful number, since it uses less digits than its factorization.

7256172051025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629603252 (or 629603247 counting only the distinct ones).

The product of its (nonzero) digits is 294000, while the sum is 43.

The spelling of 7256172051025 in words is "seven trillion, two hundred fifty-six billion, one hundred seventy-two million, fifty-one thousand, twenty-five".