54252840 has 64 divisors (see below), whose sum is σ = 166743360. Its totient is φ = 14113280.

The previous prime is 54252839. The next prime is 54252859. The reversal of 54252840 is 4825245.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 54252798 and 54252807.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 594 + ... + 10433.

It is an arithmetic number, because the mean of its divisors is an integer number (2605365).

Almost surely, 2^54252840 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 54252840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83371680).

54252840 is an abundant number, since it is smaller than the sum of its proper divisors (112490520).

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

54252840 is a wasteful number, since it uses less digits than its factorization.

54252840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11082 (or 11078 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 54252840 is about 7365.6527205673. The cubic root of 54252840 is about 378.5653196729.

The spelling of 54252840 in words is "fifty-four million, two hundred fifty-two thousand, eight hundred forty".