265549095893 has 2 divisors, whose sum is σ = 265549095894. Its totient is φ = 265549095892.

The previous prime is 265549095863. The next prime is 265549095913. The reversal of 265549095893 is 398590945562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 264091154404 + 1457941489 = 513898^2 + 38183^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-265549095893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265549095863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132774547946 + 132774547947.

It is an arithmetic number, because the mean of its divisors is an integer number (132774547947).

Almost surely, 2^265549095893 is an apocalyptic number.

It is an amenable number.

265549095893 is a deficient number, since it is larger than the sum of its proper divisors (1).

265549095893 is an equidigital number, since it uses as much as digits as its factorization.

265549095893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976000, while the sum is 65.

The spelling of 265549095893 in words is "two hundred sixty-five billion, five hundred forty-nine million, ninety-five thousand, eight hundred ninety-three".