54432280 has 64 divisors (see below), whose sum is σ = 144506880. Its totient is φ = 18057600.

The previous prime is 54432241. The next prime is 54432319. The reversal of 54432280 is 8223445.

It is an interprime number because it is at equal distance from previous prime (54432241) and next prime (54432319).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5545 + ... + 11815.

It is an arithmetic number, because the mean of its divisors is an integer number (2257920).

Almost surely, 2^54432280 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 54432280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72253440).

54432280 is an abundant number, since it is smaller than the sum of its proper divisors (90074600).

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

54432280 is a wasteful number, since it uses less digits than its factorization.

54432280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6320 (or 6316 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 54432280 is about 7377.8235273013. The cubic root of 54432280 is about 378.9822256895.

The spelling of 54432280 in words is "fifty-four million, four hundred thirty-two thousand, two hundred eighty".