54209808 has 60 divisors (see below), whose sum is σ = 153315708. Its totient is φ = 17879040.

The previous prime is 54209803. The next prime is 54209833. The reversal of 54209808 is 80890245.

It can be written as a sum of positive squares in 2 ways, for example, as 29289744 + 24920064 = 5412^2 + 4992^2 .

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

It is not an unprimeable number, because it can be changed into a prime (54209803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12028 + ... + 15908.

Almost surely, 2^54209808 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 54209808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76657854).

54209808 is an abundant number, since it is smaller than the sum of its proper divisors (99105900).

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

54209808 is a wasteful number, since it uses less digits than its factorization.

54209808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3992 (or 3983 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 54209808 is about 7362.7310150514. The cubic root of 54209808 is about 378.4652036741.

The spelling of 54209808 in words is "fifty-four million, two hundred nine thousand, eight hundred eight".