53878329 has 6 divisors (see below), whose sum is σ = 77824266. Its totient is φ = 35918880.

The previous prime is 53878289. The next prime is 53878333. The reversal of 53878329 is 92387835.

It can be written as a sum of positive squares in only one way, i.e., 28355625 + 25522704 = 5325^2 + 5052^2 .

It is not a de Polignac number, because 53878329 - 2¹⁶ = 53812793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53870329) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2993232 + ... + 2993249.

It is an arithmetic number, because the mean of its divisors is an integer number (12970711).

Almost surely, 2^53878329 is an apocalyptic number.

It is an amenable number.

53878329 is a deficient number, since it is larger than the sum of its proper divisors (23945937).

53878329 is a wasteful number, since it uses less digits than its factorization.

53878329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5986487 (or 5986484 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 53878329 is about 7340.1858968285. The cubic root of 53878329 is about 377.6922202794.

The spelling of 53878329 in words is "fifty-three million, eight hundred seventy-eight thousand, three hundred twenty-nine".