65252549 has 2 divisors, whose sum is σ = 65252550. Its totient is φ = 65252548.

The previous prime is 65252533. The next prime is 65252569. The reversal of 65252549 is 94525256.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40322500 + 24930049 = 6350^2 + 4993^2 .

It is a cyclic number.

It is not a de Polignac number, because 65252549 - 2⁴ = 65252533 is a prime.

It is a Sophie Germain prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65252569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32626274 + 32626275.

It is an arithmetic number, because the mean of its divisors is an integer number (32626275).

Almost surely, 2^65252549 is an apocalyptic number.

It is an amenable number.

65252549 is a deficient number, since it is larger than the sum of its proper divisors (1).

65252549 is an equidigital number, since it uses as much as digits as its factorization.

65252549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108000, while the sum is 38.

The square root of 65252549 is about 8077.9049882999. The cubic root of 65252549 is about 402.5926363686.

The spelling of 65252549 in words is "sixty-five million, two hundred fifty-two thousand, five hundred forty-nine".