52857687552 has 160 divisors (see below), whose sum is σ = 142156963872. Its totient is φ = 17452498944.

The previous prime is 52857687539. The next prime is 52857687557. The reversal of 52857687552 is 25578675825.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52857687557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115662108 + ... + 115662564.

Almost surely, 2^52857687552 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 52857687552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71078481936).

52857687552 is an abundant number, since it is smaller than the sum of its proper divisors (89299276320).

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

52857687552 is a wasteful number, since it uses less digits than its factorization.

52857687552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028 (or 1012 counting only the distinct ones).

The product of its digits is 47040000, while the sum is 60.

The spelling of 52857687552 in words is "fifty-two billion, eight hundred fifty-seven million, six hundred eighty-seven thousand, five hundred fifty-two".