54858820 has 48 divisors (see below), whose sum is σ = 119070000. Its totient is φ = 21217280.

The previous prime is 54858781. The next prime is 54858851. The reversal of 54858820 is 2885845.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 13307904 + 41550916 = 3648^2 + 6446^2 .

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, 121956 + ... + 122404.

It is an arithmetic number, because the mean of its divisors is an integer number (2480625).

Almost surely, 2^54858820 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 54858820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59535000).

54858820 is an abundant number, since it is smaller than the sum of its proper divisors (64211180).

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

54858820 is a wasteful number, since it uses less digits than its factorization.

54858820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648 (or 646 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 40.

The square root of 54858820 is about 7406.6740173981. The cubic root of 54858820 is about 379.9695728176.

The spelling of 54858820 in words is "fifty-four million, eight hundred fifty-eight thousand, eight hundred twenty".