65226257 has 2 divisors, whose sum is σ = 65226258. Its totient is φ = 65226256.

The previous prime is 65226241. The next prime is 65226269. The reversal of 65226257 is 75262256.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62663056 + 2563201 = 7916^2 + 1601^2 .

It is a cyclic number.

It is not a de Polignac number, because 65226257 - 2⁴ = 65226241 is a prime.

It is not a weakly prime, because it can be changed into another prime (65226277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32613128 + 32613129.

It is an arithmetic number, because the mean of its divisors is an integer number (32613129).

Almost surely, 2^65226257 is an apocalyptic number.

It is an amenable number.

65226257 is a deficient number, since it is larger than the sum of its proper divisors (1).

65226257 is an equidigital number, since it uses as much as digits as its factorization.

65226257 is an evil number, because the sum of its binary digits is even.

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

The square root of 65226257 is about 8076.2774221791. The cubic root of 65226257 is about 402.5385573186.

The spelling of 65226257 in words is "sixty-five million, two hundred twenty-six thousand, two hundred fifty-seven".