54065440 has 192 divisors, whose sum is σ = 160030080. Its totient is φ = 16957440.

The previous prime is 54065419. The next prime is 54065443. The reversal of 54065440 is 4456045.

It is a junction number, because it is equal to n+sod(n) for n = 54065399 and 54065408.

It is not an unprimeable number, because it can be changed into a prime (54065443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 388891 + ... + 389029.

It is an arithmetic number, because the mean of its divisors is an integer number (833490).

Almost surely, 2^54065440 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 54065440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80015040).

54065440 is an abundant number, since it is smaller than the sum of its proper divisors (105964640).

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

54065440 is a wasteful number, since it uses less digits than its factorization.

54065440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 54065440 is about 7352.9205082062. The cubic root of 54065440 is about 378.1289370990.

The spelling of 54065440 in words is "fifty-four million, sixty-five thousand, four hundred forty".