5281820 has 12 divisors (see below), whose sum is σ = 11091864. Its totient is φ = 2112720.

The previous prime is 5281817. The next prime is 5281823. The reversal of 5281820 is 281825.

It is an interprime number because it is at equal distance from previous prime (5281817) and next prime (5281823).

It is a super-3 number, since 3×5281820³ (a number of 21 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5281820.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5281823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132026 + ... + 132065.

It is an arithmetic number, because the mean of its divisors is an integer number (924322).

Almost surely, 2^5281820 is an apocalyptic number.

It is an amenable number.

5281820 is an abundant number, since it is smaller than the sum of its proper divisors (5810044).

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

5281820 is a wasteful number, since it uses less digits than its factorization.

5281820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264100 (or 264098 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 5281820 is about 2298.2210511611. The cubic root of 5281820 is about 174.1517590877.

The spelling of 5281820 in words is "five million, two hundred eighty-one thousand, eight hundred twenty".