54521400 has 96 divisors (see below), whose sum is σ = 171082800. Its totient is φ = 14361600.

The previous prime is 54521399. The next prime is 54521407. The reversal of 54521400 is 412545.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54521407) 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 23 ways as a sum of consecutive naturals, for example, 52890 + ... + 53910.

Almost surely, 2^54521400 is an apocalyptic number.

54521400 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 54521400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85541400).

54521400 is an abundant number, since it is smaller than the sum of its proper divisors (116561400).

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

54521400 is a wasteful number, since it uses less digits than its factorization.

54521400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129 (or 1120 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 54521400 is about 7383.8607787525. The cubic root of 54521400 is about 379.1889442022.

Adding to 54521400 its reverse (412545), we get a palindrome (54933945).

It can be divided in two parts, 545 and 21400, that added together give a triangular number (21945 = T₂₀₉).

The spelling of 54521400 in words is "fifty-four million, five hundred twenty-one thousand, four hundred".