263325001 has 4 divisors (see below), whose sum is σ = 269747604. Its totient is φ = 256902400.

The previous prime is 263324989. The next prime is 263325011. The reversal of 263325001 is 100523362.

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 95648400 + 167676601 = 9780^2 + 12949^2 .

It is a cyclic number.

It is not a de Polignac number, because 263325001 - 2⁵ = 263324969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263325011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3211240 + ... + 3211321.

It is an arithmetic number, because the mean of its divisors is an integer number (67436901).

Almost surely, 2^263325001 is an apocalyptic number.

It is an amenable number.

263325001 is a deficient number, since it is larger than the sum of its proper divisors (6422603).

263325001 is an equidigital number, since it uses as much as digits as its factorization.

263325001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6422602.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 263325001 is about 16227.2918566223. The cubic root of 263325001 is about 640.9596613707.

Adding to 263325001 its reverse (100523362), we get a palindrome (363848363).

The spelling of 263325001 in words is "two hundred sixty-three million, three hundred twenty-five thousand, one".