2257764109 has 2 divisors, whose sum is σ = 2257764110. Its totient is φ = 2257764108.

The previous prime is 2257764031. The next prime is 2257764133. The reversal of 2257764109 is 9014677522.

2257764109 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., 1184874084 + 1072890025 = 34422^2 + 32755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2257764109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2257764139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128882054 + 1128882055.

It is an arithmetic number, because the mean of its divisors is an integer number (1128882055).

Almost surely, 2^2257764109 is an apocalyptic number.

It is an amenable number.

2257764109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2257764109 is an equidigital number, since it uses as much as digits as its factorization.

2257764109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 2257764109 is about 47515.9353164809. The cubic root of 2257764109 is about 1311.8762053919.

The spelling of 2257764109 in words is "two billion, two hundred fifty-seven million, seven hundred sixty-four thousand, one hundred nine".