6535250257 has 2 divisors, whose sum is σ = 6535250258. Its totient is φ = 6535250256.

The previous prime is 6535250233. The next prime is 6535250297. The reversal of 6535250257 is 7520525356.

It is an a-pointer prime, because the next prime (6535250297) can be obtained adding 6535250257 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5696626576 + 838623681 = 75476^2 + 28959^2 .

It is a cyclic number.

It is not a de Polignac number, because 6535250257 - 2¹⁵ = 6535217489 is a prime.

It is not a weakly prime, because it can be changed into another prime (6535250297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3267625128 + 3267625129.

It is an arithmetic number, because the mean of its divisors is an integer number (3267625129).

Almost surely, 2^6535250257 is an apocalyptic number.

It is an amenable number.

6535250257 is a deficient number, since it is larger than the sum of its proper divisors (1).

6535250257 is an equidigital number, since it uses as much as digits as its factorization.

6535250257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 315000, while the sum is 40.

The square root of 6535250257 is about 80840.8947068252. The cubic root of 6535250257 is about 1869.6231386176.

The spelling of 6535250257 in words is "six billion, five hundred thirty-five million, two hundred fifty thousand, two hundred fifty-seven".