541225441805 has 4 divisors (see below), whose sum is σ = 649470530172. Its totient is φ = 432980353440.

The previous prime is 541225441769. The next prime is 541225441829. The reversal of 541225441805 is 508144522145.

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 86047182244 + 455178259561 = 293338^2 + 674669^2 .

It is a de Polignac number, because none of the positive numbers 2^k-541225441805 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54122544176 + ... + 54122544185.

It is an arithmetic number, because the mean of its divisors is an integer number (162367632543).

Almost surely, 2^541225441805 is an apocalyptic number.

It is an amenable number.

541225441805 is a deficient number, since it is larger than the sum of its proper divisors (108245088367).

541225441805 is a wasteful number, since it uses less digits than its factorization.

541225441805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108245088366.

The product of its (nonzero) digits is 256000, while the sum is 41.

The spelling of 541225441805 in words is "five hundred forty-one billion, two hundred twenty-five million, four hundred forty-one thousand, eight hundred five".