65662249 has 2 divisors, whose sum is σ = 65662250. Its totient is φ = 65662248.

The previous prime is 65662241. The next prime is 65662253. The reversal of 65662249 is 94226656.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46826649 + 18835600 = 6843^2 + 4340^2 .

It is a cyclic number.

It is not a de Polignac number, because 65662249 - 2³ = 65662241 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65662241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32831124 + 32831125.

It is an arithmetic number, because the mean of its divisors is an integer number (32831125).

Almost surely, 2^65662249 is an apocalyptic number.

It is an amenable number.

65662249 is a deficient number, since it is larger than the sum of its proper divisors (1).

65662249 is an equidigital number, since it uses as much as digits as its factorization.

65662249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 40.

The square root of 65662249 is about 8103.2246050569. The cubic root of 65662249 is about 403.4334627588.

The spelling of 65662249 in words is "sixty-five million, six hundred sixty-two thousand, two hundred forty-nine".