54521328 has 20 divisors (see below), whose sum is σ = 140846888. Its totient is φ = 18173760.

The previous prime is 54521323. The next prime is 54521333. The reversal of 54521328 is 82312545.

It is an interprime number because it is at equal distance from previous prime (54521323) and next prime (54521333).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 54521295 and 54521304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54521321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 567883 + ... + 567978.

Almost surely, 2^54521328 is an apocalyptic number.

It is an amenable number.

54521328 is an abundant number, since it is smaller than the sum of its proper divisors (86325560).

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

54521328 is a wasteful number, since it uses less digits than its factorization.

54521328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135872 (or 1135866 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 54521328 is about 7383.8559032527. The cubic root of 54521328 is about 379.1887772854.

The spelling of 54521328 in words is "fifty-four million, five hundred twenty-one thousand, three hundred twenty-eight".