265118251 has 2 divisors, whose sum is σ = 265118252. Its totient is φ = 265118250.

The previous prime is 265118221. The next prime is 265118257. The reversal of 265118251 is 152811562.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 265118251 - 2⁵ = 265118219 is a prime.

It is not a weakly prime, because it can be changed into another prime (265118257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132559125 + 132559126.

It is an arithmetic number, because the mean of its divisors is an integer number (132559126).

Almost surely, 2^265118251 is an apocalyptic number.

265118251 is a deficient number, since it is larger than the sum of its proper divisors (1).

265118251 is an equidigital number, since it uses as much as digits as its factorization.

265118251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4800, while the sum is 31.

The square root of 265118251 is about 16282.4522416005. The cubic root of 265118251 is about 642.4113548866.

It can be divided in two parts, 2651 and 18251, that added together give a palindrome (20902).

The spelling of 265118251 in words is "two hundred sixty-five million, one hundred eighteen thousand, two hundred fifty-one".