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BaseRepresentation
bin1100111000110101
32200102011
430320311
53142124
61044221
7306622
oct147065
980364
1052789
1136730
1226671
131b049
1415349
1510994
hexce35

52789 has 4 divisors (see below), whose sum is σ = 57600. Its totient is φ = 47980.

The previous prime is 52783. The next prime is 52807. The reversal of 52789 is 98725.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52789 - 25 = 52757 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a d-powerful number, because it can be written as 55 + 215 + 75 + 8 + 92 .

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2389 + ... + 2410.

It is an arithmetic number, because the mean of its divisors is an integer number (14400).

252789 is an apocalyptic number.

It is an amenable number.

52789 is a deficient number, since it is larger than the sum of its proper divisors (4811).

52789 is a wasteful number, since it uses less digits than its factorization.

52789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4810.

The product of its digits is 5040, while the sum is 31.

The square root of 52789 is about 229.7585689370. The cubic root of 52789 is about 37.5129436799.

It can be divided in two parts, 527 and 89, that added together give a palindrome (616).

The spelling of 52789 in words is "fifty-two thousand, seven hundred eighty-nine".

Divisors: 1 11 4799 52789