8051257 has 2 divisors, whose sum is σ = 8051258. Its totient is φ = 8051256.

The previous prime is 8051221. The next prime is 8051261. The reversal of 8051257 is 7521508.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6843456 + 1207801 = 2616^2 + 1099^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8051257 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8051657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4025628 + 4025629.

It is an arithmetic number, because the mean of its divisors is an integer number (4025629).

Almost surely, 2^8051257 is an apocalyptic number.

It is an amenable number.

8051257 is a deficient number, since it is larger than the sum of its proper divisors (1).

8051257 is an equidigital number, since it uses as much as digits as its factorization.

8051257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 8051257 is about 2837.4737003186. The cubic root of 8051257 is about 200.4262326500.

The spelling of 8051257 in words is "eight million, fifty-one thousand, two hundred fifty-seven".