82551282 has 32 divisors (see below), whose sum is σ = 181617984. Its totient is φ = 25013120.

The previous prime is 82551281. The next prime is 82551283. The reversal of 82551282 is 28215528.

It is an interprime number because it is at equal distance from previous prime (82551281) and next prime (82551283).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (82551281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2818 + ... + 13154.

It is an arithmetic number, because the mean of its divisors is an integer number (5675562).

Almost surely, 2^82551282 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82551282, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90808992).

82551282 is an abundant number, since it is smaller than the sum of its proper divisors (99066702).

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

82551282 is a wasteful number, since it uses less digits than its factorization.

82551282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10375 (or 10353 counting only the distinct ones).

The product of its digits is 12800, while the sum is 33.

The square root of 82551282 is about 9085.7736049277. The cubic root of 82551282 is about 435.4195661241.

The spelling of 82551282 in words is "eighty-two million, five hundred fifty-one thousand, two hundred eighty-two".