52657178112 has 960 divisors, whose sum is σ = 204209786880. Its totient is φ = 13237862400.

The previous prime is 52657178089. The next prime is 52657178183. The reversal of 52657178112 is 21187175625.

52657178112 is a `hidden beast` number, since 5 + 2 + 6 + 571 + 78 + 1 + 1 + 2 = 666.

Its product of digits (235200) is a multiple of the sum of its prime factors (280).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 275691937 + ... + 275692127.

It is an arithmetic number, because the mean of its divisors is an integer number (212718528).

Almost surely, 2^52657178112 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 52657178112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102104893440).

52657178112 is an abundant number, since it is smaller than the sum of its proper divisors (151552608768).

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

52657178112 is a wasteful number, since it uses less digits than its factorization.

52657178112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 251 counting only the distinct ones).

The product of its digits is 235200, while the sum is 45.

The spelling of 52657178112 in words is "fifty-two billion, six hundred fifty-seven million, one hundred seventy-eight thousand, one hundred twelve".