245757563 has 2 divisors, whose sum is σ = 245757564. Its totient is φ = 245757562.

The previous prime is 245757521. The next prime is 245757643. The reversal of 245757563 is 365757542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245757563 - 2⁸ = 245757307 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (245750563) 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, 122878781 + 122878782.

It is an arithmetic number, because the mean of its divisors is an integer number (122878782).

Almost surely, 2^245757563 is an apocalyptic number.

245757563 is a deficient number, since it is larger than the sum of its proper divisors (1).

245757563 is an equidigital number, since it uses as much as digits as its factorization.

245757563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 882000, while the sum is 44.

The square root of 245757563 is about 15676.6566269725. The cubic root of 245757563 is about 626.3767521521.

The spelling of 245757563 in words is "two hundred forty-five million, seven hundred fifty-seven thousand, five hundred sixty-three".