65263022249 has 2 divisors, whose sum is σ = 65263022250. Its totient is φ = 65263022248.

The previous prime is 65263022239. The next prime is 65263022263. The reversal of 65263022249 is 94222036256.

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., 40312608400 + 24950413849 = 200780^2 + 157957^2 .

It is a cyclic number.

It is not a de Polignac number, because 65263022249 - 2¹⁶ = 65262956713 is a prime.

It is a super-3 number, since 3×65263022249³ (a number of 33 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (65263022239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32631511124 + 32631511125.

It is an arithmetic number, because the mean of its divisors is an integer number (32631511125).

Almost surely, 2^65263022249 is an apocalyptic number.

It is an amenable number.

65263022249 is a deficient number, since it is larger than the sum of its proper divisors (1).

65263022249 is an equidigital number, since it uses as much as digits as its factorization.

65263022249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 65263022249 in words is "sixty-five billion, two hundred sixty-three million, twenty-two thousand, two hundred forty-nine".