53278872 has 16 divisors (see below), whose sum is σ = 133197240. Its totient is φ = 17759616.

The previous prime is 53278861. The next prime is 53278891. The reversal of 53278872 is 27887235.

53278872 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 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 3 ways as a sum of consecutive naturals, for example, 1109953 + ... + 1110000.

Almost surely, 2^53278872 is an apocalyptic number.

It is an amenable number.

53278872 is an abundant number, since it is smaller than the sum of its proper divisors (79918368).

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

53278872 is a wasteful number, since it uses less digits than its factorization.

53278872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2219962 (or 2219958 counting only the distinct ones).

The product of its digits is 188160, while the sum is 42.

The square root of 53278872 is about 7299.2377684249. The cubic root of 53278872 is about 376.2862427239.

The spelling of 53278872 in words is "fifty-three million, two hundred seventy-eight thousand, eight hundred seventy-two".