52640178 has 16 divisors (see below), whose sum is σ = 105351456. Its totient is φ = 17534880.

The previous prime is 52640167. The next prime is 52640179. The reversal of 52640178 is 87104625.

52640178 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (52640179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16233 + ... + 19203.

It is an arithmetic number, because the mean of its divisors is an integer number (6584466).

Almost surely, 2^52640178 is an apocalyptic number.

52640178 is an abundant number, since it is smaller than the sum of its proper divisors (52711278).

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

52640178 is a wasteful number, since it uses less digits than its factorization.

52640178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5929.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 52640178 is about 7255.3551256985. The cubic root of 52640178 is about 374.7765851441.

It can be divided in two parts, 526 and 40178, that added together give a palindrome (40704).

The spelling of 52640178 in words is "fifty-two million, six hundred forty thousand, one hundred seventy-eight".