54404521 has 8 divisors (see below), whose sum is σ = 55891584. Its totient is φ = 52931280.

The previous prime is 54404489. The next prime is 54404527. The reversal of 54404521 is 12540445.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54404521 - 2⁵ = 54404489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54404527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4786 + ... + 11476.

It is an arithmetic number, because the mean of its divisors is an integer number (6986448).

Almost surely, 2^54404521 is an apocalyptic number.

It is an amenable number.

54404521 is a deficient number, since it is larger than the sum of its proper divisors (1487063).

54404521 is a wasteful number, since it uses less digits than its factorization.

54404521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6911.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 54404521 is about 7375.9420415293. The cubic root of 54404521 is about 378.9177911515.

Adding to 54404521 its reverse (12540445), we get a palindrome (66944966).

The spelling of 54404521 in words is "fifty-four million, four hundred four thousand, five hundred twenty-one".