56115529812 has 96 divisors (see below), whose sum is σ = 152235417600. Its totient is φ = 17841786336.

The previous prime is 56115529787. The next prime is 56115529837. The reversal of 56115529812 is 21892551165.

56115529812 is a `hidden beast` number, since 5 + 6 + 1 + 1 + 552 + 98 + 1 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (56115529787) and next prime (56115529837).

It is a congruent number.

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, 860293 + ... + 923219.

It is an arithmetic number, because the mean of its divisors is an integer number (1585785600).

Almost surely, 2^56115529812 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 56115529812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76117708800).

56115529812 is an abundant number, since it is smaller than the sum of its proper divisors (96119887788).

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

56115529812 is a wasteful number, since it uses less digits than its factorization.

56115529812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63322 (or 63314 counting only the distinct ones).

The product of its digits is 216000, while the sum is 45.

The spelling of 56115529812 in words is "fifty-six billion, one hundred fifteen million, five hundred twenty-nine thousand, eight hundred twelve".