2261512256 has 14 divisors (see below), whose sum is σ = 4487688510. Its totient is φ = 1130756096.

The previous prime is 2261512247. The next prime is 2261512273. The reversal of 2261512256 is 6522151622.

It can be written as a sum of positive squares in only one way, i.e., 1917038656 + 344473600 = 43784^2 + 18560^2 .

It is a super-2 number, since 2×2261512256² = 10228875368076419072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17668001 + ... + 17668128.

Almost surely, 2^2261512256 is an apocalyptic number.

It is an amenable number.

2261512256 is a deficient number, since it is larger than the sum of its proper divisors (2226176254).

2261512256 is an equidigital number, since it uses as much as digits as its factorization.

2261512256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35336141 (or 35336131 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The square root of 2261512256 is about 47555.3599082164. The cubic root of 2261512256 is about 1312.6017589554.

Adding to 2261512256 its reverse (6522151622), we get a palindrome (8783663878).

The spelling of 2261512256 in words is "two billion, two hundred sixty-one million, five hundred twelve thousand, two hundred fifty-six".