2170560256 has 18 divisors (see below), whose sum is σ = 4332642272. Its totient is φ = 1085280000.

The previous prime is 2170560253. The next prime is 2170560257. The reversal of 2170560256 is 6520650712.

It is a super-2 number, since 2×2170560256² = 9422663649853571072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2170560253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4239120 + ... + 4239631.

Almost surely, 2^2170560256 is an apocalyptic number.

It is an amenable number.

2170560256 is a deficient number, since it is larger than the sum of its proper divisors (2162082016).

2170560256 is an frugal number, since it uses more digits than its factorization.

2170560256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8478767 (or 8478753 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 2170560256 is about 46589.2718981527. The cubic root of 2170560256 is about 1294.7639996688.

The spelling of 2170560256 in words is "two billion, one hundred seventy million, five hundred sixty thousand, two hundred fifty-six".