53436 has 24 divisors (see below), whose sum is σ = 128464. Its totient is φ = 17280.

The previous prime is 53419. The next prime is 53437. The reversal of 53436 is 63435.

53436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53437) by changing a digit.

53436 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 in 7 ways as a sum of consecutive naturals, for example, 696 + ... + 768.

2⁵³⁴³⁶ is an apocalyptic number.

It is an amenable number.

53436 is an abundant number, since it is smaller than the sum of its proper divisors (75028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64232).

53436 is a wasteful number, since it uses less digits than its factorization.

53436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 139 counting only the distinct ones).

The product of its digits is 1080, while the sum is 21.

The square root of 53436 is about 231.1622806601. The cubic root of 53436 is about 37.6655789315.

Subtracting 53436 from its reverse (63435), we obtain a palindrome (9999).

The spelling of 53436 in words is "fifty-three thousand, four hundred thirty-six".