82255572 has 72 divisors (see below), whose sum is σ = 241567872. Its totient is φ = 23112000.

The previous prime is 82255561. The next prime is 82255609. The reversal of 82255572 is 27555228.

82255572 is a `hidden beast` number, since 82 + 2 + 5 + 5 + 572 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12697 + ... + 18047.

Almost surely, 2^82255572 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 82255572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120783936).

82255572 is an abundant number, since it is smaller than the sum of its proper divisors (159312300).

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

82255572 is a wasteful number, since it uses less digits than its factorization.

82255572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5429 (or 5424 counting only the distinct ones).

The product of its digits is 56000, while the sum is 36.

The square root of 82255572 is about 9069.4857627100. The cubic root of 82255572 is about 434.8990332452.

The spelling of 82255572 in words is "eighty-two million, two hundred fifty-five thousand, five hundred seventy-two".