82775252 has 48 divisors (see below), whose sum is σ = 175042560. Its totient is φ = 33482592.

The previous prime is 82775237. The next prime is 82775281. The reversal of 82775252 is 25257728.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50063 + ... + 51689.

It is an arithmetic number, because the mean of its divisors is an integer number (3646720).

Almost surely, 2^82775252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82775252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87521280).

82775252 is an abundant number, since it is smaller than the sum of its proper divisors (92267308).

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

82775252 is a wasteful number, since it uses less digits than its factorization.

82775252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740 (or 1738 counting only the distinct ones).

The product of its digits is 78400, while the sum is 38.

The square root of 82775252 is about 9098.0905689051. The cubic root of 82775252 is about 435.8129896860.

The spelling of 82775252 in words is "eighty-two million, seven hundred seventy-five thousand, two hundred fifty-two".