2650263257 has 2 divisors, whose sum is σ = 2650263258. Its totient is φ = 2650263256.

The previous prime is 2650263211. The next prime is 2650263311. The reversal of 2650263257 is 7523620562.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2628510361 + 21752896 = 51269^2 + 4664^2 .

It is a cyclic number.

It is not a de Polignac number, because 2650263257 - 2⁶ = 2650263193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2650263257.

It is not a weakly prime, because it can be changed into another prime (2650263557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1325131628 + 1325131629.

It is an arithmetic number, because the mean of its divisors is an integer number (1325131629).

Almost surely, 2^2650263257 is an apocalyptic number.

It is an amenable number.

2650263257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2650263257 is an equidigital number, since it uses as much as digits as its factorization.

2650263257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 38.

The square root of 2650263257 is about 51480.7076194568. The cubic root of 2650263257 is about 1383.8733263129.

The spelling of 2650263257 in words is "two billion, six hundred fifty million, two hundred sixty-three thousand, two hundred fifty-seven".