65050681 has 2 divisors, whose sum is σ = 65050682. Its totient is φ = 65050680.

The previous prime is 65050673. The next prime is 65050691. The reversal of 65050681 is 18605056.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60140025 + 4910656 = 7755^2 + 2216^2 .

It is a cyclic number.

It is not a de Polignac number, because 65050681 - 2³ = 65050673 is a prime.

It is a super-2 number, since 2×65050681² = 8463182197127522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65050631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32525340 + 32525341.

It is an arithmetic number, because the mean of its divisors is an integer number (32525341).

Almost surely, 2^65050681 is an apocalyptic number.

It is an amenable number.

65050681 is a deficient number, since it is larger than the sum of its proper divisors (1).

65050681 is an equidigital number, since it uses as much as digits as its factorization.

65050681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 65050681 is about 8065.4002380539. The cubic root of 65050681 is about 402.1770484043.

The spelling of 65050681 in words is "sixty-five million, fifty thousand, six hundred eighty-one".