505351355453131 has 4 divisors (see below), whose sum is σ = 551292387767064. Its totient is φ = 459410323139200.

The previous prime is 505351355453101. The next prime is 505351355453173. The reversal of 505351355453131 is 131354553153505.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 505351355453131 - 2²³ = 505351347064523 is a prime.

It is a super-3 number, since 3×505351355453131³ (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505351355453101) 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, 22970516156950 + ... + 22970516156971.

It is an arithmetic number, because the mean of its divisors is an integer number (137823096941766).

Almost surely, 2^{505351355453131} is an apocalyptic number.

505351355453131 is a deficient number, since it is larger than the sum of its proper divisors (45941032313933).

505351355453131 is a wasteful number, since it uses less digits than its factorization.

505351355453131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45941032313932.

The product of its (nonzero) digits is 5062500, while the sum is 49.

The spelling of 505351355453131 in words is "five hundred five trillion, three hundred fifty-one billion, three hundred fifty-five million, four hundred fifty-three thousand, one hundred thirty-one".