54225240 has 128 divisors (see below), whose sum is σ = 181440000. Its totient is φ = 12883968.

The previous prime is 54225233. The next prime is 54225319. The reversal of 54225240 is 4252245.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 54225240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38061 + ... + 39459.

It is an arithmetic number, because the mean of its divisors is an integer number (1417500).

Almost surely, 2^54225240 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 54225240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90720000).

54225240 is an abundant number, since it is smaller than the sum of its proper divisors (127214760).

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

54225240 is a wasteful number, since it uses less digits than its factorization.

54225240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449 (or 1445 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 54225240 is about 7363.7789211790. The cubic root of 54225240 is about 378.5011130487.

Adding to 54225240 its reverse (4252245), we get a palindrome (58477485).

The spelling of 54225240 in words is "fifty-four million, two hundred twenty-five thousand, two hundred forty".