852566 has 24 divisors (see below), whose sum is σ = 1519392. Its totient is φ = 356400.

The previous prime is 852563. The next prime is 852569. The reversal of 852566 is 665258.

Added to its reverse (665258) it gives a square (1517824 = 1232²).

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (852563) and next prime (852569).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (852563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3011 + ... + 3281.

It is an arithmetic number, because the mean of its divisors is an integer number (63308).

2⁸⁵²⁵⁶⁶ is an apocalyptic number.

852566 is a deficient number, since it is larger than the sum of its proper divisors (666826).

852566 is a wasteful number, since it uses less digits than its factorization.

852566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 297 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The square root of 852566 is about 923.3450059431. The cubic root of 852566 is about 94.8220491480.

Adding to 852566 its reverse (665258), we get a square (1517824 = 1232²).

The spelling of 852566 in words is "eight hundred fifty-two thousand, five hundred sixty-six".