265493803 has 2 divisors, whose sum is σ = 265493804. Its totient is φ = 265493802.

The previous prime is 265493797. The next prime is 265493831. The reversal of 265493803 is 308394562.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-265493803 is a prime.

It is not a weakly prime, because it can be changed into another prime (265493863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132746901 + 132746902.

It is an arithmetic number, because the mean of its divisors is an integer number (132746902).

Almost surely, 2^265493803 is an apocalyptic number.

265493803 is a deficient number, since it is larger than the sum of its proper divisors (1).

265493803 is an equidigital number, since it uses as much as digits as its factorization.

265493803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 265493803 is about 16293.9805756604. The cubic root of 265493803 is about 642.7145466885.

The spelling of 265493803 in words is "two hundred sixty-five million, four hundred ninety-three thousand, eight hundred three".