505243025301313 has 16 divisors (see below), whose sum is σ = 552242014769536. Its totient is φ = 459406386996480.

The previous prime is 505243025301253. The next prime is 505243025301331. The reversal of 505243025301313 is 313103520342505.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505243025301313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505243025301373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29876068 + ... + 43624138.

It is an arithmetic number, because the mean of its divisors is an integer number (34515125923096).

Almost surely, 2^{505243025301313} is an apocalyptic number.

It is an amenable number.

505243025301313 is a deficient number, since it is larger than the sum of its proper divisors (46998989468223).

505243025301313 is a wasteful number, since it uses less digits than its factorization.

505243025301313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13790344.

The product of its (nonzero) digits is 162000, while the sum is 37.

Adding to 505243025301313 its reverse (313103520342505), we get a palindrome (818346545643818).

The spelling of 505243025301313 in words is "five hundred five trillion, two hundred forty-three billion, twenty-five million, three hundred one thousand, three hundred thirteen".