52978878 has 48 divisors (see below), whose sum is σ = 122151120. Its totient is φ = 16547328.

The previous prime is 52978819. The next prime is 52978879. The reversal of 52978878 is 87887925.

52978878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52978879) 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 23 ways as a sum of consecutive naturals, for example, 32376 + ... + 33972.

It is an arithmetic number, because the mean of its divisors is an integer number (2544815).

Almost surely, 2^52978878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52978878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61075560).

52978878 is an abundant number, since it is smaller than the sum of its proper divisors (69172242).

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

52978878 is a wasteful number, since it uses less digits than its factorization.

52978878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1721 (or 1718 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 54.

The square root of 52978878 is about 7278.6590798031. The cubic root of 52978878 is about 375.5786692524.

The spelling of 52978878 in words is "fifty-two million, nine hundred seventy-eight thousand, eight hundred seventy-eight".