56172326225 has 12 divisors (see below), whose sum is σ = 69669360816. Its totient is φ = 44927747280.

The previous prime is 56172326201. The next prime is 56172326257. The reversal of 56172326225 is 52262327165.

It is not a de Polignac number, because 56172326225 - 2¹⁰ = 56172325201 is a prime.

It is a Duffinian number.

It is a Curzon number.

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, 138527 + ... + 362676.

It is an arithmetic number, because the mean of its divisors is an integer number (5805780068).

Almost surely, 2^56172326225 is an apocalyptic number.

It is an amenable number.

56172326225 is a deficient number, since it is larger than the sum of its proper divisors (13497034591).

56172326225 is a wasteful number, since it uses less digits than its factorization.

56172326225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505696 (or 505691 counting only the distinct ones).

The product of its digits is 302400, while the sum is 41.

The spelling of 56172326225 in words is "fifty-six billion, one hundred seventy-two million, three hundred twenty-six thousand, two hundred twenty-five".