53516573441 has 4 divisors (see below), whose sum is σ = 53521561092. Its totient is φ = 53511585792.

The previous prime is 53516573437. The next prime is 53516573447. The reversal of 53516573441 is 14437561535.

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 49432852225 + 4083721216 = 222335^2 + 63904^2 .

It is a cyclic number.

It is not a de Polignac number, because 53516573441 - 2² = 53516573437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53516573392 and 53516573401.

It is not an unprimeable number, because it can be changed into a prime (53516573447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2477696 + ... + 2499201.

It is an arithmetic number, because the mean of its divisors is an integer number (13380390273).

Almost surely, 2^53516573441 is an apocalyptic number.

It is an amenable number.

53516573441 is a deficient number, since it is larger than the sum of its proper divisors (4987651).

53516573441 is a wasteful number, since it uses less digits than its factorization.

53516573441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4987650.

The product of its digits is 756000, while the sum is 44.

The spelling of 53516573441 in words is "fifty-three billion, five hundred sixteen million, five hundred seventy-three thousand, four hundred forty-one".