72565225751 has 8 divisors (see below), whose sum is σ = 73125946608. Its totient is φ = 72004608000.

The previous prime is 72565225741. The next prime is 72565225753. The reversal of 72565225751 is 15752256527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72565225751 - 2⁶ = 72565225687 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72565225696 and 72565225705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72565225753) 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 7 ways as a sum of consecutive naturals, for example, 1994261 + ... + 2030321.

It is an arithmetic number, because the mean of its divisors is an integer number (9140743326).

Almost surely, 2^72565225751 is an apocalyptic number.

72565225751 is a deficient number, since it is larger than the sum of its proper divisors (560720857).

72565225751 is a wasteful number, since it uses less digits than its factorization.

72565225751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51553.

The product of its digits is 1470000, while the sum is 47.

The spelling of 72565225751 in words is "seventy-two billion, five hundred sixty-five million, two hundred twenty-five thousand, seven hundred fifty-one".