282538505 has 4 divisors (see below), whose sum is σ = 339046212. Its totient is φ = 226030800.

The previous prime is 282538499. The next prime is 282538507. The reversal of 282538505 is 505835282.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 505835282 = 2 ⋅252917641.

It can be written as a sum of positive squares in 2 ways, for example, as 192876544 + 89661961 = 13888^2 + 9469^2 .

It is not a de Polignac number, because 282538505 - 2¹² = 282534409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (282538507) 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, 28253846 + ... + 28253855.

It is an arithmetic number, because the mean of its divisors is an integer number (84761553).

Almost surely, 2^282538505 is an apocalyptic number.

It is an amenable number.

282538505 is a deficient number, since it is larger than the sum of its proper divisors (56507707).

282538505 is an equidigital number, since it uses as much as digits as its factorization.

282538505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56507706.

The product of its (nonzero) digits is 96000, while the sum is 38.

The square root of 282538505 is about 16808.8817296095. The cubic root of 282538505 is about 656.1843691886.

The spelling of 282538505 in words is "two hundred eighty-two million, five hundred thirty-eight thousand, five hundred five".