822525228 has 36 divisors (see below), whose sum is σ = 2376184720. Its totient is φ = 235007136.

The previous prime is 822525211. The next prime is 822525233.

822525228 is a `hidden beast` number, since 82 + 2 + 52 + 522 + 8 = 666.

822525228 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 822525192 and 822525201.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1631743 + ... + 1632246.

Almost surely, 2^822525228 is an apocalyptic number.

It is an amenable number.

822525228 is an abundant number, since it is smaller than the sum of its proper divisors (1553659492).

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

822525228 is a wasteful number, since it uses less digits than its factorization.

822525228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3264006 (or 3264001 counting only the distinct ones).

The product of its digits is 51200, while the sum is 36.

The square root of 822525228 is about 28679.7006260526. The cubic root of 822525228 is about 936.9499860734.

The spelling of 822525228 in words is "eight hundred twenty-two million, five hundred twenty-five thousand, two hundred twenty-eight".