56031574451172 has 96 divisors (see below), whose sum is σ = 138889976924160. Its totient is φ = 17520326853120.

The previous prime is 56031574451081. The next prime is 56031574451201. The reversal of 56031574451172 is 27115447513065.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86277147 + ... + 86924157.

It is an arithmetic number, because the mean of its divisors is an integer number (1446770592960).

Almost surely, 2^{56031574451172} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56031574451172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69444988462080).

56031574451172 is an abundant number, since it is smaller than the sum of its proper divisors (82858402472988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56031574451172 is a wasteful number, since it uses less digits than its factorization.

56031574451172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648441 (or 648439 counting only the distinct ones).

The product of its (nonzero) digits is 3528000, while the sum is 51.

The spelling of 56031574451172 in words is "fifty-six trillion, thirty-one billion, five hundred seventy-four million, four hundred fifty-one thousand, one hundred seventy-two".