2605522256 has 10 divisors (see below), whose sum is σ = 5048199402. Its totient is φ = 1302761120.

The previous prime is 2605522253. The next prime is 2605522279. The reversal of 2605522256 is 6522255062.

It can be written as a sum of positive squares in only one way, i.e., 2602632256 + 2890000 = 51016^2 + 1700^2 .

It is a super-2 number, since 2×2605522256² = 13577492453022659072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2605522253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81422555 + ... + 81422586.

Almost surely, 2^2605522256 is an apocalyptic number.

It is an amenable number.

2605522256 is a deficient number, since it is larger than the sum of its proper divisors (2442677146).

2605522256 is a wasteful number, since it uses less digits than its factorization.

2605522256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162845149 (or 162845143 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The square root of 2605522256 is about 51044.3165886272. The cubic root of 2605522256 is about 1376.0417020217.

The spelling of 2605522256 in words is "two billion, six hundred five million, five hundred twenty-two thousand, two hundred fifty-six".