54818820 has 144 divisors (see below), whose sum is σ = 192017280. Its totient is φ = 12400128.

The previous prime is 54818807. The next prime is 54818837. The reversal of 54818820 is 2881845.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 174984 + ... + 175296.

Almost surely, 2^54818820 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 54818820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96008640).

54818820 is an abundant number, since it is smaller than the sum of its proper divisors (137198460).

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

54818820 is a wasteful number, since it uses less digits than its factorization.

54818820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 54818820 is about 7403.9732576502. The cubic root of 54818820 is about 379.8771994707.

The spelling of 54818820 in words is "fifty-four million, eight hundred eighteen thousand, eight hundred twenty".