2175022656 has 42 divisors (see below), whose sum is σ = 6234311382. Its totient is φ = 725007360.

The previous prime is 2175022643. The next prime is 2175022657. The reversal of 2175022656 is 6562205712.

It can be written as a sum of positive squares in only one way, i.e., 1399957056 + 775065600 = 37416^2 + 27840^2 .

It is a super-2 number, since 2×2175022656² = 9461447108226588672, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2175022656.

It is not an unprimeable number, because it can be changed into a prime (2175022657) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1887465 + ... + 1888616.

Almost surely, 2^2175022656 is an apocalyptic number.

It is an amenable number.

2175022656 is an abundant number, since it is smaller than the sum of its proper divisors (4059288726).

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

2175022656 is a wasteful number, since it uses less digits than its factorization.

2175022656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3776099 (or 3776086 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 2175022656 is about 46637.1381626274. The cubic root of 2175022656 is about 1295.6506831760.

The spelling of 2175022656 in words is "two billion, one hundred seventy-five million, twenty-two thousand, six hundred fifty-six".