8523122228 has 6 divisors (see below), whose sum is σ = 14915463906. Its totient is φ = 4261561112.

The previous prime is 8523122219. The next prime is 8523122233. The reversal of 8523122228 is 8222213258.

It can be written as a sum of positive squares in only one way, i.e., 7116272164 + 1406850064 = 84358^2 + 37508^2 .

It is a super-2 number, since 2×8523122228² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065390275 + ... + 1065390282.

It is an arithmetic number, because the mean of its divisors is an integer number (2485910651).

Almost surely, 2^8523122228 is an apocalyptic number.

It is an amenable number.

8523122228 is a deficient number, since it is larger than the sum of its proper divisors (6392341678).

8523122228 is a wasteful number, since it uses less digits than its factorization.

8523122228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130780561 (or 2130780559 counting only the distinct ones).

The product of its digits is 30720, while the sum is 35.

The square root of 8523122228 is about 92320.7572975872. The cubic root of 8523122228 is about 2042.6764041408.

The spelling of 8523122228 in words is "eight billion, five hundred twenty-three million, one hundred twenty-two thousand, two hundred twenty-eight".