2265763257 has 12 divisors (see below), whose sum is σ = 3276064740. Its totient is φ = 1508987808.

The previous prime is 2265763237. The next prime is 2265763343. The reversal of 2265763257 is 7523675622.

2265763257 is a `hidden beast` number, since 2 + 2 + 6 + 5 + 7 + 632 + 5 + 7 = 666.

2265763257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1735888896 + 529874361 = 41664^2 + 23019^2 .

It is not a de Polignac number, because 2265763257 - 2¹¹ = 2265761209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2265763237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117282 + ... + 135227.

It is an arithmetic number, because the mean of its divisors is an integer number (273005395).

Almost surely, 2^2265763257 is an apocalyptic number.

It is an amenable number.

2265763257 is a deficient number, since it is larger than the sum of its proper divisors (1010301483).

2265763257 is a wasteful number, since it uses less digits than its factorization.

2265763257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253512 (or 253509 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 45.

The square root of 2265763257 is about 47600.0342121726. The cubic root of 2265763257 is about 1313.4236837287.

The spelling of 2265763257 in words is "two billion, two hundred sixty-five million, seven hundred sixty-three thousand, two hundred fifty-seven".