65251469 has 2 divisors, whose sum is σ = 65251470. Its totient is φ = 65251468.

The previous prime is 65251441. The next prime is 65251471. The reversal of 65251469 is 96415256.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55875625 + 9375844 = 7475^2 + 3062^2 .

It is a cyclic number.

It is not a de Polignac number, because 65251469 - 2¹² = 65247373 is a prime.

It is a super-2 number, since 2×65251469² = 8515508413315922, which contains 22 as substring.

Together with 65251471, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65251429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32625734 + 32625735.

It is an arithmetic number, because the mean of its divisors is an integer number (32625735).

Almost surely, 2^65251469 is an apocalyptic number.

It is an amenable number.

65251469 is a deficient number, since it is larger than the sum of its proper divisors (1).

65251469 is an equidigital number, since it uses as much as digits as its factorization.

65251469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 38.

The square root of 65251469 is about 8077.8381390072. The cubic root of 65251469 is about 402.5904152423.

The spelling of 65251469 in words is "sixty-five million, two hundred fifty-one thousand, four hundred sixty-nine".