2256243541 has 4 divisors (see below), whose sum is σ = 2276210412. Its totient is φ = 2236276672.

The previous prime is 2256243527. The next prime is 2256243589. The reversal of 2256243541 is 1453426522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1453426522 = 2 ⋅726713261.

It can be written as a sum of positive squares in 2 ways, for example, as 24059025 + 2232184516 = 4905^2 + 47246^2 .

It is a cyclic number.

It is not a de Polignac number, because 2256243541 - 2²⁵ = 2222689109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2256243497 and 2256243506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256243511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9983266 + ... + 9983491.

It is an arithmetic number, because the mean of its divisors is an integer number (569052603).

Almost surely, 2^2256243541 is an apocalyptic number.

It is an amenable number.

2256243541 is a deficient number, since it is larger than the sum of its proper divisors (19966871).

2256243541 is a wasteful number, since it uses less digits than its factorization.

2256243541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19966870.

The product of its digits is 57600, while the sum is 34.

The square root of 2256243541 is about 47499.9320104777. The cubic root of 2256243541 is about 1311.5816300406.

The spelling of 2256243541 in words is "two billion, two hundred fifty-six million, two hundred forty-three thousand, five hundred forty-one".