505636285 has 32 divisors (see below), whose sum is σ = 763488000. Its totient is φ = 312284160.

The previous prime is 505636283. The next prime is 505636297. The reversal of 505636285 is 582636505.

It is not a de Polignac number, because 505636285 - 2¹ = 505636283 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505636283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35941 + ... + 47989.

It is an arithmetic number, because the mean of its divisors is an integer number (23859000).

Almost surely, 2^505636285 is an apocalyptic number.

505636285 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

505636285 is a deficient number, since it is larger than the sum of its proper divisors (257851715).

505636285 is a wasteful number, since it uses less digits than its factorization.

505636285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12181.

The product of its (nonzero) digits is 216000, while the sum is 40.

The square root of 505636285 is about 22486.3577530911. The cubic root of 505636285 is about 796.6717376435.

It can be divided in two parts, 505 and 636285, that multiplied together give a triangular number (321323925 = T₂₅₃₅₀).

The spelling of 505636285 in words is "five hundred five million, six hundred thirty-six thousand, two hundred eighty-five".