65185201 has 2 divisors, whose sum is σ = 65185202. Its totient is φ = 65185200.

The previous prime is 65185199. The next prime is 65185217. The reversal of 65185201 is 10258156.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61858225 + 3326976 = 7865^2 + 1824^2 .

It is a cyclic number.

It is not a de Polignac number, because 65185201 - 2¹ = 65185199 is a prime.

It is a super-2 number, since 2×65185201² = 8498220858820802, which contains 22 as substring.

Together with 65185199, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 65185201.

It is not a weakly prime, because it can be changed into another prime (65183201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32592600 + 32592601.

It is an arithmetic number, because the mean of its divisors is an integer number (32592601).

Almost surely, 2^65185201 is an apocalyptic number.

It is an amenable number.

65185201 is a deficient number, since it is larger than the sum of its proper divisors (1).

65185201 is an equidigital number, since it uses as much as digits as its factorization.

65185201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 65185201 is about 8073.7352569923. The cubic root of 65185201 is about 402.4540816668.

The spelling of 65185201 in words is "sixty-five million, one hundred eighty-five thousand, two hundred one".