505052231 has 4 divisors (see below), whose sum is σ = 512590392. Its totient is φ = 497514072.

The previous prime is 505052189. The next prime is 505052287. The reversal of 505052231 is 132250505.

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 505052231 - 2¹⁸ = 504790087 is a prime.

It is a super-2 number, since 2×505052231² = 510155512076154722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 505052197 and 505052206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505052531) 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, 3768980 + ... + 3769113.

It is an arithmetic number, because the mean of its divisors is an integer number (128147598).

Almost surely, 2^505052231 is an apocalyptic number.

505052231 is a deficient number, since it is larger than the sum of its proper divisors (7538161).

505052231 is an equidigital number, since it uses as much as digits as its factorization.

505052231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7538160.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 505052231 is about 22473.3671486940. The cubic root of 505052231 is about 796.3648776879.

The spelling of 505052231 in words is "five hundred five million, fifty-two thousand, two hundred thirty-one".