54503400 has 192 divisors, whose sum is σ = 203558400. Its totient is φ = 11784960.

The previous prime is 54503387. The next prime is 54503401. The reversal of 54503400 is 430545.

It is a happy number.

It is a super-2 number, since 2×54503400² = 5941241223120000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54503401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 79459 + ... + 80141.

It is an arithmetic number, because the mean of its divisors is an integer number (1060200).

Almost surely, 2^54503400 is an apocalyptic number.

54503400 is a gapful number since it is divisible by the number (50) 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 54503400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101779200).

54503400 is an abundant number, since it is smaller than the sum of its proper divisors (149055000).

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

54503400 is a wasteful number, since it uses less digits than its factorization.

54503400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728 (or 719 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 54503400 is about 7382.6418035822. The cubic root of 54503400 is about 379.1472104227.

Adding to 54503400 its reverse (430545), we get a palindrome (54933945).

The spelling of 54503400 in words is "fifty-four million, five hundred three thousand, four hundred".