505334424551413 has 4 divisors (see below), whose sum is σ = 505354972472748. Its totient is φ = 505313876630080.

The previous prime is 505334424551389. The next prime is 505334424551461. The reversal of 505334424551413 is 314155424433505.

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 27525625841169 + 477808798710244 = 5246487^2 + 21858838^2 .

It is a cyclic number.

It is not a de Polignac number, because 505334424551413 - 2²¹ = 505334422454261 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 (505334421551413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10273923778 + ... + 10273972963.

It is an arithmetic number, because the mean of its divisors is an integer number (126338743118187).

Almost surely, 2^{505334424551413} is an apocalyptic number.

It is an amenable number.

505334424551413 is a deficient number, since it is larger than the sum of its proper divisors (20547921335).

505334424551413 is a wasteful number, since it uses less digits than its factorization.

505334424551413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20547921334.

The product of its (nonzero) digits is 8640000, while the sum is 49.

Adding to 505334424551413 its reverse (314155424433505), we get a palindrome (819489848984918).

The spelling of 505334424551413 in words is "five hundred five trillion, three hundred thirty-four billion, four hundred twenty-four million, five hundred fifty-one thousand, four hundred thirteen".