5242265618 has 6 divisors (see below), whose sum is σ = 7863552021. Its totient is φ = 2621081612.

The previous prime is 5242265597. The next prime is 5242265653. The reversal of 5242265618 is 8165622425.

It can be written as a sum of positive squares in 2 ways, for example, as 3127829329 + 2114436289 = 55927^2 + 45983^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=51197.

It is a Duffinian number.

It is a Curzon number.

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 2 ways as a sum of consecutive naturals, for example, 76796 + ... + 127992.

Almost surely, 2^5242265618 is an apocalyptic number.

5242265618 is a deficient number, since it is larger than the sum of its proper divisors (2621286403).

5242265618 is an frugal number, since it uses more digits than its factorization.

5242265618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102396 (or 51199 counting only the distinct ones).

The product of its digits is 230400, while the sum is 41.

The square root of 5242265618 is about 72403.4917528153. The cubic root of 5242265618 is about 1737.1594135176.

The spelling of 5242265618 in words is "five billion, two hundred forty-two million, two hundred sixty-five thousand, six hundred eighteen".