52855780 has 12 divisors (see below), whose sum is σ = 110997180. Its totient is φ = 21142304.

The previous prime is 52855741. The next prime is 52855783. The reversal of 52855780 is 8755825.

It can be written as a sum of positive squares in 2 ways, for example, as 31270464 + 21585316 = 5592^2 + 4646^2 .

It is not an unprimeable number, because it can be changed into a prime (52855783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1321375 + ... + 1321414.

It is an arithmetic number, because the mean of its divisors is an integer number (9249765).

Almost surely, 2^52855780 is an apocalyptic number.

It is an amenable number.

52855780 is an abundant number, since it is smaller than the sum of its proper divisors (58141400).

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

52855780 is a wasteful number, since it uses less digits than its factorization.

52855780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2642798 (or 2642796 counting only the distinct ones).

The product of its (nonzero) digits is 112000, while the sum is 40.

The square root of 52855780 is about 7270.1980715796. The cubic root of 52855780 is about 375.2875542586.

It can be divided in two parts, 52855 and 780, that added together give a palindrome (53635).

The spelling of 52855780 in words is "fifty-two million, eight hundred fifty-five thousand, seven hundred eighty".