56700825507172 has 144 divisors (see below), whose sum is σ = 129079830737088. Its totient is φ = 21538722804480.

The previous prime is 56700825507107. The next prime is 56700825507217. The reversal of 56700825507172 is 27170552800765.

It is a happy number.

It is a super-2 number, since 2×56700825507172² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51089338 + ... + 52187374.

It is an arithmetic number, because the mean of its divisors is an integer number (896387713452).

Almost surely, 2^{56700825507172} 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 56700825507172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64539915368544).

56700825507172 is an abundant number, since it is smaller than the sum of its proper divisors (72379005229916).

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

56700825507172 is a wasteful number, since it uses less digits than its factorization.

56700825507172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098666 (or 1098657 counting only the distinct ones).

The product of its (nonzero) digits is 8232000, while the sum is 55.

The spelling of 56700825507172 in words is "fifty-six trillion, seven hundred billion, eight hundred twenty-five million, five hundred seven thousand, one hundred seventy-two".