54505140 has 24 divisors (see below), whose sum is σ = 152614560. Its totient is φ = 14534688.

The previous prime is 54505133. The next prime is 54505141. The reversal of 54505140 is 4150545.

It is a self number, because there is not a number n which added to its sum of digits gives 54505140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54505141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454150 + ... + 454269.

It is an arithmetic number, because the mean of its divisors is an integer number (6358940).

Almost surely, 2^54505140 is an apocalyptic number.

It is an amenable number.

54505140 is an abundant number, since it is smaller than the sum of its proper divisors (98109420).

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

54505140 is a wasteful number, since it uses less digits than its factorization.

54505140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908431 (or 908429 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 54505140 is about 7382.7596466362. The cubic root of 54505140 is about 379.1512450892.

Adding to 54505140 its reverse (4150545), we get a palindrome (58655685).

It can be divided in two parts, 54505 and 140, that added together give a palindrome (54645).

The spelling of 54505140 in words is "fifty-four million, five hundred five thousand, one hundred forty".