52840278 has 12 divisors (see below), whose sum is σ = 114487308. Its totient is φ = 17613420.

The previous prime is 52840261. The next prime is 52840313. The reversal of 52840278 is 87204825.

It is a happy number.

52840278 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1467768 + ... + 1467803.

It is an arithmetic number, because the mean of its divisors is an integer number (9540609).

Almost surely, 2^52840278 is an apocalyptic number.

52840278 is an abundant number, since it is smaller than the sum of its proper divisors (61647030).

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

52840278 is a wasteful number, since it uses less digits than its factorization.

52840278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2935579 (or 2935576 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 52840278 is about 7269.1318601330. The cubic root of 52840278 is about 375.2508614786.

The spelling of 52840278 in words is "fifty-two million, eight hundred forty thousand, two hundred seventy-eight".