53286878 has 4 divisors (see below), whose sum is σ = 79930320. Its totient is φ = 26643438.

The previous prime is 53286869. The next prime is 53286907. The reversal of 53286878 is 87868235.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13321718 + ... + 13321721.

It is an arithmetic number, because the mean of its divisors is an integer number (19982580).

Almost surely, 2^53286878 is an apocalyptic number.

53286878 is a deficient number, since it is larger than the sum of its proper divisors (26643442).

53286878 is a wasteful number, since it uses less digits than its factorization.

53286878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26643441.

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

The square root of 53286878 is about 7299.7861612516. The cubic root of 53286878 is about 376.3050894490.

The spelling of 53286878 in words is "fifty-three million, two hundred eighty-six thousand, eight hundred seventy-eight".