5271618 has 16 divisors (see below), whose sum is σ = 11501856. Its totient is φ = 1597440.

The previous prime is 5271613. The next prime is 5271619. The reversal of 5271618 is 8161725.

It is not an unprimeable number, because it can be changed into a prime (5271613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39871 + ... + 40002.

It is an arithmetic number, because the mean of its divisors is an integer number (718866).

Almost surely, 2^5271618 is an apocalyptic number.

5271618 is an abundant number, since it is smaller than the sum of its proper divisors (6230238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5271618 is a wasteful number, since it uses less digits than its factorization.

5271618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79889.

The product of its digits is 3360, while the sum is 30.

The square root of 5271618 is about 2296.0004355400. Note that the first 3 decimals coincide. The cubic root of 5271618 is about 174.0395603008.

It can be divided in two parts, 527 and 1618, that added together give a triangular number (2145 = T₆₅).

The spelling of 5271618 in words is "five million, two hundred seventy-one thousand, six hundred eighteen".