5271812 has 36 divisors (see below), whose sum is σ = 11563020. Its totient is φ = 2084544.

The previous prime is 5271811. The next prime is 5271817. The reversal of 5271812 is 2181725.

It can be written as a sum of positive squares in 2 ways, for example, as 802816 + 4468996 = 896^2 + 2114^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (5271811) 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 11 ways as a sum of consecutive naturals, for example, 1514 + ... + 3582.

It is an arithmetic number, because the mean of its divisors is an integer number (321195).

Almost surely, 2^5271812 is an apocalyptic number.

5271812 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5271812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5781510).

5271812 is an abundant number, since it is smaller than the sum of its proper divisors (6291208).

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

5271812 is a wasteful number, since it uses less digits than its factorization.

5271812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100 (or 2091 counting only the distinct ones).

The product of its digits is 1120, while the sum is 26.

The square root of 5271812 is about 2296.0426825301. The cubic root of 5271812 is about 174.0416952089.

The spelling of 5271812 in words is "five million, two hundred seventy-one thousand, eight hundred twelve".