54489750 has 128 divisors (see below), whose sum is σ = 158505984. Its totient is φ = 12211200.

The previous prime is 54489733. The next prime is 54489751. The reversal of 54489750 is 5798445.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54489751) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 509197 + ... + 509303.

It is an arithmetic number, because the mean of its divisors is an integer number (1238328).

Almost surely, 2^54489750 is an apocalyptic number.

54489750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 54489750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79252992).

54489750 is an abundant number, since it is smaller than the sum of its proper divisors (104016234).

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

54489750 is a wasteful number, since it uses less digits than its factorization.

54489750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 54489750 is about 7381.7172798746. The cubic root of 54489750 is about 379.1155561802.

The spelling of 54489750 in words is "fifty-four million, four hundred eighty-nine thousand, seven hundred fifty".