505045618 has 16 divisors (see below), whose sum is σ = 944501184. Its totient is φ = 196770960.

The previous prime is 505045613. The next prime is 505045633. The reversal of 505045618 is 816540505.

It is a happy number.

It is a super-2 number, since 2×505045618² = 510142152522003848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (505045613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1639605 + ... + 1639912.

It is an arithmetic number, because the mean of its divisors is an integer number (59031324).

Almost surely, 2^505045618 is an apocalyptic number.

505045618 is a deficient number, since it is larger than the sum of its proper divisors (439455566).

505045618 is a wasteful number, since it uses less digits than its factorization.

505045618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3279537.

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 505045618 is about 22473.2200185020. The cubic root of 505045618 is about 796.3614018864.

The spelling of 505045618 in words is "five hundred five million, forty-five thousand, six hundred eighteen".