505386231 has 8 divisors (see below), whose sum is σ = 770112384. Its totient is φ = 288792120.

The previous prime is 505386229. The next prime is 505386257. The reversal of 505386231 is 132683505.

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

It is not a de Polignac number, because 505386231 - 2¹ = 505386229 is a prime.

It is a super-2 number, since 2×505386231² = 510830484968770722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 505386192 and 505386201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505386221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12032985 + ... + 12033026.

It is an arithmetic number, because the mean of its divisors is an integer number (96264048).

Almost surely, 2^505386231 is an apocalyptic number.

505386231 is a deficient number, since it is larger than the sum of its proper divisors (264726153).

505386231 is a wasteful number, since it uses less digits than its factorization.

505386231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24066021.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 505386231 is about 22480.7969387208. The cubic root of 505386231 is about 796.5403890777.

The spelling of 505386231 in words is "five hundred five million, three hundred eighty-six thousand, two hundred thirty-one".