52406 has 4 divisors (see below), whose sum is σ = 78612. Its totient is φ = 26202.

The previous prime is 52391. The next prime is 52433. The reversal of 52406 is 60425.

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

It is an Ulam number.

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

52406 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13100 + ... + 13103.

It is an arithmetic number, because the mean of its divisors is an integer number (19653).

2⁵²⁴⁰⁶ is an apocalyptic number.

52406 is a deficient number, since it is larger than the sum of its proper divisors (26206).

52406 is a wasteful number, since it uses less digits than its factorization.

52406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26205.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 52406 is about 228.9235680309. The cubic root of 52406 is about 37.4220008389.

It can be divided in two parts, 52 and 406, that multiplied together give a palindrome (21112).

The spelling of 52406 in words is "fifty-two thousand, four hundred six".