65291953 has 2 divisors, whose sum is σ = 65291954. Its totient is φ = 65291952.

The previous prime is 65291927. The next prime is 65291957. The reversal of 65291953 is 35919256.

It is a happy number.

65291953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37540129 + 27751824 = 6127^2 + 5268^2 .

It is a cyclic number.

It is not a de Polignac number, because 65291953 - 2²¹ = 63194801 is a prime.

It is not a weakly prime, because it can be changed into another prime (65291957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32645976 + 32645977.

It is an arithmetic number, because the mean of its divisors is an integer number (32645977).

Almost surely, 2^65291953 is an apocalyptic number.

It is an amenable number.

65291953 is a deficient number, since it is larger than the sum of its proper divisors (1).

65291953 is an equidigital number, since it uses as much as digits as its factorization.

65291953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72900, while the sum is 40.

The square root of 65291953 is about 8080.3436189311. The cubic root of 65291953 is about 402.6736578170.

The spelling of 65291953 in words is "sixty-five million, two hundred ninety-one thousand, nine hundred fifty-three".