8215252 has 12 divisors (see below), whose sum is σ = 14727636. Its totient is φ = 4007360.

The previous prime is 8215247. The next prime is 8215253. The reversal of 8215252 is 2525128.

It can be written as a sum of positive squares in 2 ways, for example, as 352836 + 7862416 = 594^2 + 2804^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8215253) 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, 24883 + ... + 25210.

It is an arithmetic number, because the mean of its divisors is an integer number (1227303).

Almost surely, 2^8215252 is an apocalyptic number.

8215252 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

8215252 is a deficient number, since it is larger than the sum of its proper divisors (6512384).

8215252 is a wasteful number, since it uses less digits than its factorization.

8215252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50138 (or 50136 counting only the distinct ones).

The product of its digits is 1600, while the sum is 25.

The square root of 8215252 is about 2866.2260901750. The cubic root of 8215252 is about 201.7779149263. Note that the first 3 decimals are identical.

The spelling of 8215252 in words is "eight million, two hundred fifteen thousand, two hundred fifty-two".