65225655251 has 2 divisors, whose sum is σ = 65225655252. Its totient is φ = 65225655250.

The previous prime is 65225655247. The next prime is 65225655289. The reversal of 65225655251 is 15255652256.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65225655251 - 2² = 65225655247 is a prime.

It is a super-2 number, since 2×65225655251² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65225655851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32612827625 + 32612827626.

It is an arithmetic number, because the mean of its divisors is an integer number (32612827626).

Almost surely, 2^65225655251 is an apocalyptic number.

65225655251 is a deficient number, since it is larger than the sum of its proper divisors (1).

65225655251 is an equidigital number, since it uses as much as digits as its factorization.

65225655251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 900000, while the sum is 44.

The spelling of 65225655251 in words is "sixty-five billion, two hundred twenty-five million, six hundred fifty-five thousand, two hundred fifty-one".