54053440 has 112 divisors (see below), whose sum is σ = 149961600. Its totient is φ = 18173952.

The previous prime is 54053401. The next prime is 54053449. The reversal of 54053440 is 4435045.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54053449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131956 + ... + 132364.

Almost surely, 2^54053440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54053440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74980800).

54053440 is an abundant number, since it is smaller than the sum of its proper divisors (95908160).

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

54053440 is a wasteful number, since it uses less digits than its factorization.

54053440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492 (or 482 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 54053440 is about 7352.1044606289. The cubic root of 54053440 is about 378.1009593804.

Adding to 54053440 its reverse (4435045), we get a palindrome (58488485).

The spelling of 54053440 in words is "fifty-four million, fifty-three thousand, four hundred forty".