653247263 has 2 divisors, whose sum is σ = 653247264. Its totient is φ = 653247262.

The previous prime is 653247241. The next prime is 653247269. The reversal of 653247263 is 362742356.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 653247263 - 2¹² = 653243167 is a prime.

It is a super-3 number, since 3×653247263³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (653247269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326623631 + 326623632.

It is an arithmetic number, because the mean of its divisors is an integer number (326623632).

Almost surely, 2^653247263 is an apocalyptic number.

653247263 is a deficient number, since it is larger than the sum of its proper divisors (1).

653247263 is an equidigital number, since it uses as much as digits as its factorization.

653247263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 38.

The square root of 653247263 is about 25558.7022949132. The cubic root of 653247263 is about 867.6792258151.

The spelling of 653247263 in words is "six hundred fifty-three million, two hundred forty-seven thousand, two hundred sixty-three".