263652251 has 2 divisors, whose sum is σ = 263652252. Its totient is φ = 263652250.

The previous prime is 263652223. The next prime is 263652283. The reversal of 263652251 is 152256362.

It is an a-pointer prime, because the next prime (263652283) can be obtained adding 263652251 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 263652251 - 2²⁶ = 196543387 is a prime.

It is not a weakly prime, because it can be changed into another prime (263652211) 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, 131826125 + 131826126.

It is an arithmetic number, because the mean of its divisors is an integer number (131826126).

Almost surely, 2^263652251 is an apocalyptic number.

263652251 is a deficient number, since it is larger than the sum of its proper divisors (1).

263652251 is an equidigital number, since it uses as much as digits as its factorization.

263652251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 32.

The square root of 263652251 is about 16237.3720472249. The cubic root of 263652251 is about 641.2250713102.

The spelling of 263652251 in words is "two hundred sixty-three million, six hundred fifty-two thousand, two hundred fifty-one".