2665002257 has 2 divisors, whose sum is σ = 2665002258. Its totient is φ = 2665002256.

The previous prime is 2665002239. The next prime is 2665002259. The reversal of 2665002257 is 7522005662.

2665002257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1380568336 + 1284433921 = 37156^2 + 35839^2 .

It is a cyclic number.

It is not a de Polignac number, because 2665002257 - 2¹⁰ = 2665001233 is a prime.

Together with 2665002259, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2665002259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1332501128 + 1332501129.

It is an arithmetic number, because the mean of its divisors is an integer number (1332501129).

Almost surely, 2^2665002257 is an apocalyptic number.

It is an amenable number.

2665002257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2665002257 is an equidigital number, since it uses as much as digits as its factorization.

2665002257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 2665002257 is about 51623.6598566975. The cubic root of 2665002257 is about 1386.4339793539.

The spelling of 2665002257 in words is "two billion, six hundred sixty-five million, two thousand, two hundred fifty-seven".