51852585132 has 144 divisors (see below), whose sum is σ = 144502176000. Its totient is φ = 16211793600.

The previous prime is 51852585131. The next prime is 51852585143. The reversal of 51852585132 is 23158525815.

51852585132 is a `hidden beast` number, since 5 + 1 + 8 + 52 + 585 + 13 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (51852585131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1851369 + ... + 1879167.

Almost surely, 2^51852585132 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 51852585132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72251088000).

51852585132 is an abundant number, since it is smaller than the sum of its proper divisors (92649590868).

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

51852585132 is a wasteful number, since it uses less digits than its factorization.

51852585132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27938 (or 27924 counting only the distinct ones).

The product of its digits is 480000, while the sum is 45.

The spelling of 51852585132 in words is "fifty-one billion, eight hundred fifty-two million, five hundred eighty-five thousand, one hundred thirty-two".