263023253 has 2 divisors, whose sum is σ = 263023254. Its totient is φ = 263023252.

The previous prime is 263023249. The next prime is 263023279. The reversal of 263023253 is 352320362.

It is a happy number.

It is an a-pointer prime, because the next prime (263023279) can be obtained adding 263023253 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 229764964 + 33258289 = 15158^2 + 5767^2 .

It is a cyclic number.

It is not a de Polignac number, because 263023253 - 2² = 263023249 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263023283) 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, 131511626 + 131511627.

It is an arithmetic number, because the mean of its divisors is an integer number (131511627).

Almost surely, 2^263023253 is an apocalyptic number.

It is an amenable number.

263023253 is a deficient number, since it is larger than the sum of its proper divisors (1).

263023253 is an equidigital number, since it uses as much as digits as its factorization.

263023253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 26.

The square root of 263023253 is about 16217.9916450836. The cubic root of 263023253 is about 640.7147394191.

The spelling of 263023253 in words is "two hundred sixty-three million, twenty-three thousand, two hundred fifty-three".