53438 has 16 divisors (see below), whose sum is σ = 100224. Its totient is φ = 20760.

The previous prime is 53437. The next prime is 53441. The reversal of 53438 is 83435.

It is a Curzon number.

It is a congruent number.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20 + ... + 327.

It is an arithmetic number, because the mean of its divisors is an integer number (6264).

2⁵³⁴³⁸ is an apocalyptic number.

53438 is a deficient number, since it is larger than the sum of its proper divisors (46786).

53438 is a wasteful number, since it uses less digits than its factorization.

53438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367.

The product of its digits is 1440, while the sum is 23.

The square root of 53438 is about 231.1666065849. The cubic root of 53438 is about 37.6660488408. Note that the first 3 decimals are identical.

It can be divided in two parts, 5 and 3438, that added together give a palindrome (3443).

The spelling of 53438 in words is "fifty-three thousand, four hundred thirty-eight".