52052838840 has 160 divisors (see below), whose sum is σ = 175158157680. Its totient is φ = 13864670208.

The previous prime is 52052838821. The next prime is 52052838841. The reversal of 52052838840 is 4883825025.

52052838840 is a `hidden beast` number, since 5 + 2 + 0 + 528 + 3 + 88 + 40 = 666.

52052838840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52052838841) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2929824 + ... + 2947536.

Almost surely, 2^52052838840 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 52052838840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87579078840).

52052838840 is an abundant number, since it is smaller than the sum of its proper divisors (123105318840).

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

52052838840 is a wasteful number, since it uses less digits than its factorization.

52052838840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18643 (or 18630 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 45.

The spelling of 52052838840 in words is "fifty-two billion, fifty-two million, eight hundred thirty-eight thousand, eight hundred forty".