249828563 has 2 divisors, whose sum is σ = 249828564. Its totient is φ = 249828562.

The previous prime is 249828559. The next prime is 249828569. The reversal of 249828563 is 365828942.

249828563 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 249828563 - 2² = 249828559 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (249828569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124914281 + 124914282.

It is an arithmetic number, because the mean of its divisors is an integer number (124914282).

Almost surely, 2^249828563 is an apocalyptic number.

249828563 is a deficient number, since it is larger than the sum of its proper divisors (1).

249828563 is an equidigital number, since it uses as much as digits as its factorization.

249828563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829440, while the sum is 47.

The square root of 249828563 is about 15805.9660571570. The cubic root of 249828563 is about 629.8164939627.

The spelling of 249828563 in words is "two hundred forty-nine million, eight hundred twenty-eight thousand, five hundred sixty-three".