54320004 has 48 divisors (see below), whose sum is σ = 142107840. Its totient is φ = 17942400.

The previous prime is 54319973. The next prime is 54320009. The reversal of 54320004 is 40002345.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (54320009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9979 + ... + 14429.

It is an arithmetic number, because the mean of its divisors is an integer number (2960580).

Almost surely, 2^54320004 is an apocalyptic number.

54320004 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54320004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71053920).

54320004 is an abundant number, since it is smaller than the sum of its proper divisors (87787836).

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

54320004 is a wasteful number, since it uses less digits than its factorization.

54320004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4577 (or 4569 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 54320004 is about 7370.2105804380. The cubic root of 54320004 is about 378.7214741775.

Adding to 54320004 its reverse (40002345), we get a palindrome (94322349).

The spelling of 54320004 in words is "fifty-four million, three hundred twenty thousand, four".