65922401 has 2 divisors, whose sum is σ = 65922402. Its totient is φ = 65922400.

The previous prime is 65922377. The next prime is 65922443. The reversal of 65922401 is 10422956.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50751376 + 15171025 = 7124^2 + 3895^2 .

It is a cyclic number.

It is not a de Polignac number, because 65922401 - 2¹⁰ = 65921377 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (65922491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32961200 + 32961201.

It is an arithmetic number, because the mean of its divisors is an integer number (32961201).

Almost surely, 2^65922401 is an apocalyptic number.

It is an amenable number.

65922401 is a deficient number, since it is larger than the sum of its proper divisors (1).

65922401 is an equidigital number, since it uses as much as digits as its factorization.

65922401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 65922401 is about 8119.2611117022. The cubic root of 65922401 is about 403.9655580382.

The spelling of 65922401 in words is "sixty-five million, nine hundred twenty-two thousand, four hundred one".