54055540 has 72 divisors (see below), whose sum is σ = 142644096. Its totient is φ = 16843200.

The previous prime is 54055531. The next prime is 54055549. The reversal of 54055540 is 4555045.

54055540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (54055531) and next prime (54055549).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 54055499 and 54055508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54055549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15345 + ... + 18535.

It is an arithmetic number, because the mean of its divisors is an integer number (1981168).

Almost surely, 2^54055540 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 54055540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71322048).

54055540 is an abundant number, since it is smaller than the sum of its proper divisors (88588556).

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

54055540 is a wasteful number, since it uses less digits than its factorization.

54055540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3229 (or 3216 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 54055540 is about 7352.2472754934. The cubic root of 54055540 is about 378.1058557801.

The spelling of 54055540 in words is "fifty-four million, fifty-five thousand, five hundred forty".