263045485 has 4 divisors (see below), whose sum is σ = 315654588. Its totient is φ = 210436384.

The previous prime is 263045479. The next prime is 263045507. The reversal of 263045485 is 584540362.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 76422564 + 186622921 = 8742^2 + 13661^2 .

It is a cyclic number.

It is not a de Polignac number, because 263045485 - 2³ = 263045477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 26304544 + ... + 26304553.

It is an arithmetic number, because the mean of its divisors is an integer number (78913647).

Almost surely, 2^263045485 is an apocalyptic number.

It is an amenable number.

263045485 is a deficient number, since it is larger than the sum of its proper divisors (52609103).

263045485 is an equidigital number, since it uses as much as digits as its factorization.

263045485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52609102.

The product of its (nonzero) digits is 115200, while the sum is 37.

The square root of 263045485 is about 16218.6770422251. The cubic root of 263045485 is about 640.7327910154.

The spelling of 263045485 in words is "two hundred sixty-three million, forty-five thousand, four hundred eighty-five".