5215266 has 84 divisors (see below), whose sum is σ = 13830822. Its totient is φ = 1469664.

The previous prime is 5215247. The next prime is 5215267. The reversal of 5215266 is 6625125.

It can be written as a sum of positive squares in only one way, i.e., 4322241 + 893025 = 2079^2 + 945^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (5215267) by changing a digit.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 71406 + ... + 71478.

Almost surely, 2^5215266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5215266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6915411).

5215266 is an abundant number, since it is smaller than the sum of its proper divisors (8615556).

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

5215266 is an equidigital number, since it uses as much as digits as its factorization.

5215266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107 (or 85 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 5215266 is about 2283.6956890094. The cubic root of 5215266 is about 173.4171939704.

The spelling of 5215266 in words is "five million, two hundred fifteen thousand, two hundred sixty-six".