505513044421 has 8 divisors (see below), whose sum is σ = 630250029504. Its totient is φ = 393906268320.

The previous prime is 505513044419. The next prime is 505513044461. The reversal of 505513044421 is 124440315505.

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

It is a cyclic number.

It is not a de Polignac number, because 505513044421 - 2¹ = 505513044419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505513044461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3282552160 + ... + 3282552313.

It is an arithmetic number, because the mean of its divisors is an integer number (78781253688).

Almost surely, 2^505513044421 is an apocalyptic number.

It is an amenable number.

505513044421 is a deficient number, since it is larger than the sum of its proper divisors (124736985083).

505513044421 is a wasteful number, since it uses less digits than its factorization.

505513044421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6565104491.

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 505513044421 its reverse (124440315505), we get a palindrome (629953359926).

The spelling of 505513044421 in words is "five hundred five billion, five hundred thirteen million, forty-four thousand, four hundred twenty-one".