53278868 has 12 divisors (see below), whose sum is σ = 93405312. Its totient is φ = 26591640.

The previous prime is 53278861. The next prime is 53278891. The reversal of 53278868 is 86887235.

53278868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×53278868² = 5677275550722848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53278861) 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 3 ways as a sum of consecutive naturals, for example, 9380 + ... + 13947.

It is an arithmetic number, because the mean of its divisors is an integer number (7783776).

Almost surely, 2^53278868 is an apocalyptic number.

It is an amenable number.

53278868 is a deficient number, since it is larger than the sum of its proper divisors (40126444).

53278868 is a wasteful number, since it uses less digits than its factorization.

53278868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23902 (or 23900 counting only the distinct ones).

The product of its digits is 645120, while the sum is 47.

The square root of 53278868 is about 7299.2374944236. The cubic root of 53278868 is about 376.2862333071.

The spelling of 53278868 in words is "fifty-three million, two hundred seventy-eight thousand, eight hundred sixty-eight".