65544893 has 2 divisors, whose sum is σ = 65544894. Its totient is φ = 65544892.

The previous prime is 65544887. The next prime is 65544907. The reversal of 65544893 is 39844556.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34597924 + 30946969 = 5882^2 + 5563^2 .

It is a cyclic number.

It is not a de Polignac number, because 65544893 - 2⁸ = 65544637 is a prime.

It is a super-2 number, since 2×65544893² = 8592265996762898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65544823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32772446 + 32772447.

It is an arithmetic number, because the mean of its divisors is an integer number (32772447).

Almost surely, 2^65544893 is an apocalyptic number.

It is an amenable number.

65544893 is a deficient number, since it is larger than the sum of its proper divisors (1).

65544893 is an equidigital number, since it uses as much as digits as its factorization.

65544893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518400, while the sum is 44.

The square root of 65544893 is about 8095.9800518529. The cubic root of 65544893 is about 403.1929715965.

The spelling of 65544893 in words is "sixty-five million, five hundred forty-four thousand, eight hundred ninety-three".