505014232155321 has 24 divisors (see below), whose sum is σ = 787263458604480. Its totient is φ = 287114690345952.

The previous prime is 505014232155253. The next prime is 505014232155341. The reversal of 505014232155321 is 123551232410505.

It is not a de Polignac number, because 505014232155321 - 2¹⁹ = 505014231631033 is a prime.

It is a super-2 number, since 2×505014232155321² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 505014232155321.

It is not an unprimeable number, because it can be changed into a prime (505014232155341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8719440501 + ... + 8719498418.

It is an arithmetic number, because the mean of its divisors is an integer number (32802644108520).

Almost surely, 2^{505014232155321} is an apocalyptic number.

It is an amenable number.

505014232155321 is a deficient number, since it is larger than the sum of its proper divisors (282249226449159).

505014232155321 is a wasteful number, since it uses less digits than its factorization.

505014232155321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17438939133 (or 17438939126 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 39.

Adding to 505014232155321 its reverse (123551232410505), we get a palindrome (628565464565826).

The spelling of 505014232155321 in words is "five hundred five trillion, fourteen billion, two hundred thirty-two million, one hundred fifty-five thousand, three hundred twenty-one".