65205461 has 2 divisors, whose sum is σ = 65205462. Its totient is φ = 65205460.

The previous prime is 65205449. The next prime is 65205487. The reversal of 65205461 is 16450256.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61324561 + 3880900 = 7831^2 + 1970^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65205461 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65205661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32602730 + 32602731.

It is an arithmetic number, because the mean of its divisors is an integer number (32602731).

Almost surely, 2^65205461 is an apocalyptic number.

It is an amenable number.

65205461 is a deficient number, since it is larger than the sum of its proper divisors (1).

65205461 is an equidigital number, since it uses as much as digits as its factorization.

65205461 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 29.

The square root of 65205461 is about 8074.9898451949. The cubic root of 65205461 is about 402.4957724952.

The spelling of 65205461 in words is "sixty-five million, two hundred five thousand, four hundred sixty-one".