54344521 has 16 divisors (see below), whose sum is σ = 70093440. Its totient is φ = 40884480.

The previous prime is 54344509. The next prime is 54344533. The reversal of 54344521 is 12544345.

It is an interprime number because it is at equal distance from previous prime (54344509) and next prime (54344533).

It is not a de Polignac number, because 54344521 - 2⁵ = 54344489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54344521.

It is not an unprimeable number, because it can be changed into a prime (54344501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9936 + ... + 14401.

It is an arithmetic number, because the mean of its divisors is an integer number (4380840).

Almost surely, 2^54344521 is an apocalyptic number.

It is an amenable number.

54344521 is a deficient number, since it is larger than the sum of its proper divisors (15748919).

54344521 is a wasteful number, since it uses less digits than its factorization.

54344521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24384.

The product of its digits is 9600, while the sum is 28.

The square root of 54344521 is about 7371.8736424331. The cubic root of 54344521 is about 378.7784434774.

Adding to 54344521 its reverse (12544345), we get a palindrome (66888866).

The spelling of 54344521 in words is "fifty-four million, three hundred forty-four thousand, five hundred twenty-one".