52015278 has 16 divisors (see below), whose sum is σ = 118892160. Its totient is φ = 14861496.

The previous prime is 52015247. The next prime is 52015297. The reversal of 52015278 is 87251025.

52015278 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 7 ways as a sum of consecutive naturals, for example, 619188 + ... + 619271.

It is an arithmetic number, because the mean of its divisors is an integer number (7430760).

Almost surely, 2^52015278 is an apocalyptic number.

52015278 is an abundant number, since it is smaller than the sum of its proper divisors (66876882).

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

52015278 is a wasteful number, since it uses less digits than its factorization.

52015278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238471.

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 52015278 is about 7212.1618118287. The cubic root of 52015278 is about 373.2876667853.

The spelling of 52015278 in words is "fifty-two million, fifteen thousand, two hundred seventy-eight".