263304425 has 6 divisors (see below), whose sum is σ = 326497518. Its totient is φ = 210643520.

The previous prime is 263304409. The next prime is 263304473. The reversal of 263304425 is 524403362.

It can be written as a sum of positive squares in 3 ways, for example, as 994009 + 262310416 = 997^2 + 16196^2 .

It is not a de Polignac number, because 263304425 - 2⁴ = 263304409 is a prime.

It is a Duffinian 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 5 ways as a sum of consecutive naturals, for example, 5266064 + ... + 5266113.

It is an arithmetic number, because the mean of its divisors is an integer number (54416253).

Almost surely, 2^263304425 is an apocalyptic number.

263304425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

263304425 is a deficient number, since it is larger than the sum of its proper divisors (63193093).

263304425 is a wasteful number, since it uses less digits than its factorization.

263304425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10532187 (or 10532182 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 263304425 is about 16226.6578505865. The cubic root of 263304425 is about 640.9429662481.

Adding to 263304425 its reverse (524403362), we get a palindrome (787707787).

The spelling of 263304425 in words is "two hundred sixty-three million, three hundred four thousand, four hundred twenty-five".