265546493 has 2 divisors, whose sum is σ = 265546494. Its totient is φ = 265546492.

The previous prime is 265546471. The next prime is 265546507. The reversal of 265546493 is 394645562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 263153284 + 2393209 = 16222^2 + 1547^2 .

It is a cyclic number.

It is not a de Polignac number, because 265546493 - 2²⁴ = 248769277 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265546693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132773246 + 132773247.

It is an arithmetic number, because the mean of its divisors is an integer number (132773247).

Almost surely, 2^265546493 is an apocalyptic number.

It is an amenable number.

265546493 is a deficient number, since it is larger than the sum of its proper divisors (1).

265546493 is an equidigital number, since it uses as much as digits as its factorization.

265546493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 777600, while the sum is 44.

The square root of 265546493 is about 16295.5973502047. The cubic root of 265546493 is about 642.7570616663.

The spelling of 265546493 in words is "two hundred sixty-five million, five hundred forty-six thousand, four hundred ninety-three".