505989682 has 16 divisors (see below), whose sum is σ = 832615200. Its totient is φ = 228708640.

The previous prime is 505989667. The next prime is 505989691. The reversal of 505989682 is 286989505.

It is a super-2 number, since 2×505989682² = 512051116580922248, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60307 + ... + 68182.

It is an arithmetic number, because the mean of its divisors is an integer number (52038450).

Almost surely, 2^505989682 is an apocalyptic number.

505989682 is a deficient number, since it is larger than the sum of its proper divisors (326625518).

505989682 is a wasteful number, since it uses less digits than its factorization.

505989682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128681.

The product of its (nonzero) digits is 1555200, while the sum is 52.

The square root of 505989682 is about 22494.2144117104. The cubic root of 505989682 is about 796.8572964761.

The spelling of 505989682 in words is "five hundred five million, nine hundred eighty-nine thousand, six hundred eighty-two".