52878663 has 20 divisors (see below), whose sum is σ = 79192080. Its totient is φ = 35163072.

The previous prime is 52878659. The next prime is 52878671. The reversal of 52878663 is 36687825.

It is not a de Polignac number, because 52878663 - 2² = 52878659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52878673) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 51903 + ... + 52911.

It is an arithmetic number, because the mean of its divisors is an integer number (3959604).

Almost surely, 2^52878663 is an apocalyptic number.

52878663 is a deficient number, since it is larger than the sum of its proper divisors (26313417).

52878663 is a wasteful number, since it uses less digits than its factorization.

52878663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668 (or 1659 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 52878663 is about 7271.7716548308. The cubic root of 52878663 is about 375.3417045401.

The spelling of 52878663 in words is "fifty-two million, eight hundred seventy-eight thousand, six hundred sixty-three".