54438133 has 4 divisors (see below), whose sum is σ = 56315340. Its totient is φ = 52560928.

The previous prime is 54438127. The next prime is 54438157. The reversal of 54438133 is 33183445.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33183445 = 5 ⋅6636689.

It can be written as a sum of positive squares in 2 ways, for example, as 28965924 + 25472209 = 5382^2 + 5047^2 .

It is a cyclic number.

It is not a de Polignac number, because 54438133 - 2⁵ = 54438101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54438095 and 54438104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54438833) 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, 938560 + ... + 938617.

It is an arithmetic number, because the mean of its divisors is an integer number (14078835).

Almost surely, 2^54438133 is an apocalyptic number.

It is an amenable number.

54438133 is a deficient number, since it is larger than the sum of its proper divisors (1877207).

54438133 is a wasteful number, since it uses less digits than its factorization.

54438133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1877206.

The product of its digits is 17280, while the sum is 31.

The square root of 54438133 is about 7378.2201783357. The cubic root of 54438133 is about 378.9958089497.

The spelling of 54438133 in words is "fifty-four million, four hundred thirty-eight thousand, one hundred thirty-three".