52799139 has 12 divisors (see below), whose sum is σ = 77007216. Its totient is φ = 34857072.

The previous prime is 52799129. The next prime is 52799143. The reversal of 52799139 is 93199725.

It is a happy number.

52799139 is a `hidden beast` number, since 527 + 9 + 91 + 39 = 666.

52799139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-52799139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52799094 and 52799103.

It is not an unprimeable number, because it can be changed into a prime (52799129) 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 11 ways as a sum of consecutive naturals, for example, 27552 + ... + 29405.

It is an arithmetic number, because the mean of its divisors is an integer number (6417268).

Almost surely, 2^52799139 is an apocalyptic number.

52799139 is a deficient number, since it is larger than the sum of its proper divisors (24208077).

52799139 is a wasteful number, since it uses less digits than its factorization.

52799139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57066 (or 57063 counting only the distinct ones).

The product of its digits is 153090, while the sum is 45.

The square root of 52799139 is about 7266.3016039798. The cubic root of 52799139 is about 375.1534518648.

The spelling of 52799139 in words is "fifty-two million, seven hundred ninety-nine thousand, one hundred thirty-nine".