54005240 has 32 divisors (see below), whose sum is σ = 121722480. Its totient is φ = 21564672.

The previous prime is 54005207. The next prime is 54005257. The reversal of 54005240 is 4250045.

It is a happy number.

54005240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 40667 + ... + 41973.

Almost surely, 2^54005240 is an apocalyptic number.

It is an amenable number.

54005240 is an abundant number, since it is smaller than the sum of its proper divisors (67717240).

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

54005240 is a wasteful number, since it uses less digits than its factorization.

54005240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351 (or 2347 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 54005240 is about 7348.8257565410. The cubic root of 54005240 is about 377.9885404736.

Adding to 54005240 its reverse (4250045), we get a palindrome (58255285).

It can be divided in two parts, 54005 and 240, that added together give a palindrome (54245).

The spelling of 54005240 in words is "fifty-four million, five thousand, two hundred forty".