54110521 has 4 divisors (see below), whose sum is σ = 54455332. Its totient is φ = 53765712.

The previous prime is 54110519. The next prime is 54110533. The reversal of 54110521 is 12501145.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35283600 + 18826921 = 5940^2 + 4339^2 .

It is a cyclic number.

It is not a de Polignac number, because 54110521 - 2¹ = 54110519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54110821) 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, 172170 + ... + 172483.

It is an arithmetic number, because the mean of its divisors is an integer number (13613833).

Almost surely, 2^54110521 is an apocalyptic number.

It is an amenable number.

54110521 is a deficient number, since it is larger than the sum of its proper divisors (344811).

54110521 is a wasteful number, since it uses less digits than its factorization.

54110521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344810.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 54110521 is about 7355.9853860649. The cubic root of 54110521 is about 378.2340054193.

Adding to 54110521 its reverse (12501145), we get a palindrome (66611666).

The spelling of 54110521 in words is "fifty-four million, one hundred ten thousand, five hundred twenty-one".