2256523305 has 16 divisors (see below), whose sum is σ = 3822816384. Its totient is φ = 1132686080.

The previous prime is 2256523289. The next prime is 2256523309. The reversal of 2256523305 is 5033256522.

2256523305 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2256523305 - 2⁴ = 2256523289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2256523309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4424301 + ... + 4424810.

It is an arithmetic number, because the mean of its divisors is an integer number (238926024).

Almost surely, 2^2256523305 is an apocalyptic number.

It is an amenable number.

2256523305 is a deficient number, since it is larger than the sum of its proper divisors (1566293079).

2256523305 is a wasteful number, since it uses less digits than its factorization.

2256523305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8849136.

The product of its (nonzero) digits is 54000, while the sum is 33.

The square root of 2256523305 is about 47502.8768076208. The cubic root of 2256523305 is about 1311.6358378646.

Adding to 2256523305 its reverse (5033256522), we get a palindrome (7289779827).

The spelling of 2256523305 in words is "two billion, two hundred fifty-six million, five hundred twenty-three thousand, three hundred five".