53779 has 4 divisors (see below), whose sum is σ = 58680. Its totient is φ = 48880.

The previous prime is 53777. The next prime is 53783. The reversal of 53779 is 97735.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53779 - 2¹ = 53777 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 a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53779.

It is not an unprimeable number, because it can be changed into a prime (53773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2434 + ... + 2455.

It is an arithmetic number, because the mean of its divisors is an integer number (14670).

2⁵³⁷⁷⁹ is an apocalyptic number.

53779 is a deficient number, since it is larger than the sum of its proper divisors (4901).

53779 is a wasteful number, since it uses less digits than its factorization.

53779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4900.

The product of its digits is 6615, while the sum is 31.

The square root of 53779 is about 231.9029969621. The cubic root of 53779 is about 37.7459975582.

Subtracting 53779 from its reverse (97735), we obtain a triangular number (43956 = T₂₉₆).

It can be divided in two parts, 537 and 79, that added together give a palindrome (616).

The spelling of 53779 in words is "fifty-three thousand, seven hundred seventy-nine".