52838781 has 8 divisors (see below), whose sum is σ = 70592160. Its totient is φ = 35155632.

The previous prime is 52838777. The next prime is 52838789. The reversal of 52838781 is 18783825.

It is a happy number.

52838781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52838781 - 2² = 52838777 is a prime.

It is a super-2 number, since 2×52838781² = 5583873555131922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52838789) 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 7 ways as a sum of consecutive naturals, for example, 15775 + ... + 18828.

It is an arithmetic number, because the mean of its divisors is an integer number (8824020).

Almost surely, 2^52838781 is an apocalyptic number.

It is an amenable number.

52838781 is a deficient number, since it is larger than the sum of its proper divisors (17753379).

52838781 is a wasteful number, since it uses less digits than its factorization.

52838781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35115.

The product of its digits is 107520, while the sum is 42.

The square root of 52838781 is about 7269.0288897486. The cubic root of 52838781 is about 375.2473177435.

The spelling of 52838781 in words is "fifty-two million, eight hundred thirty-eight thousand, seven hundred eighty-one".