54430041521 has 6 divisors (see below), whose sum is σ = 56242489266. Its totient is φ = 52674232800.

The previous prime is 54430041509. The next prime is 54430041599. The reversal of 54430041521 is 12514003445.

It can be written as a sum of positive squares in only one way, i.e., 42421169296 + 12008872225 = 205964^2 + 109585^2 .

It is a de Polignac number, because none of the positive numbers 2^k-54430041521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54433041521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28318520 + ... + 28320441.

It is an arithmetic number, because the mean of its divisors is an integer number (9373748211).

Almost surely, 2^54430041521 is an apocalyptic number.

It is an amenable number.

54430041521 is a deficient number, since it is larger than the sum of its proper divisors (1812447745).

54430041521 is an equidigital number, since it uses as much as digits as its factorization.

54430041521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56639023 (or 56638992 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 54430041521 its reverse (12514003445), we get a palindrome (66944044966).

The spelling of 54430041521 in words is "fifty-four billion, four hundred thirty million, forty-one thousand, five hundred twenty-one".