505544433242 has 8 divisors (see below), whose sum is σ = 758345117556. Its totient is φ = 252762727392.

The previous prime is 505544433221. The next prime is 505544433253. The reversal of 505544433242 is 242334445505.

It can be written as a sum of positive squares in 2 ways, for example, as 504073020361 + 1471412881 = 709981^2 + 38359^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 505544433242.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4677833 + ... + 4784684.

Almost surely, 2^505544433242 is an apocalyptic number.

505544433242 is a deficient number, since it is larger than the sum of its proper divisors (252800684314).

505544433242 is a wasteful number, since it uses less digits than its factorization.

505544433242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9489232.

The product of its (nonzero) digits is 1152000, while the sum is 41.

Adding to 505544433242 its reverse (242334445505), we get a palindrome (747878878747).

The spelling of 505544433242 in words is "five hundred five billion, five hundred forty-four million, four hundred thirty-three thousand, two hundred forty-two".