505612269 has 12 divisors (see below), whose sum is σ = 730656316. Its totient is φ = 336923712.

The previous prime is 505612267. The next prime is 505612297. The reversal of 505612269 is 962216505.

It can be written as a sum of positive squares in 2 ways, for example, as 275726025 + 229886244 = 16605^2 + 15162^2 .

It is not a de Polignac number, because 505612269 - 2¹ = 505612267 is a prime.

It is a super-2 number, since 2×505612269² = 511287533126656722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505612267) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10899 + ... + 33615.

Almost surely, 2^505612269 is an apocalyptic number.

It is an amenable number.

505612269 is a deficient number, since it is larger than the sum of its proper divisors (225044047).

505612269 is a wasteful number, since it uses less digits than its factorization.

505612269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25196 (or 25193 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 505612269 is about 22485.8237340774. The cubic root of 505612269 is about 796.6591243798.

The spelling of 505612269 in words is "five hundred five million, six hundred twelve thousand, two hundred sixty-nine".