245606663 has 2 divisors, whose sum is σ = 245606664. Its totient is φ = 245606662.

The previous prime is 245606659. The next prime is 245606681. The reversal of 245606663 is 366606542.

245606663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245606663 - 2² = 245606659 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245696663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122803331 + 122803332.

It is an arithmetic number, because the mean of its divisors is an integer number (122803332).

Almost surely, 2^245606663 is an apocalyptic number.

245606663 is a deficient number, since it is larger than the sum of its proper divisors (1).

245606663 is an equidigital number, since it uses as much as digits as its factorization.

245606663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 38.

The square root of 245606663 is about 15671.8429994688. The cubic root of 245606663 is about 626.2485233357.

The spelling of 245606663 in words is "two hundred forty-five million, six hundred six thousand, six hundred sixty-three".