249494803 has 2 divisors, whose sum is σ = 249494804. Its totient is φ = 249494802.

The previous prime is 249494779. The next prime is 249494821. The reversal of 249494803 is 308494942.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 249494803 - 2²⁵ = 215940371 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 249494803.

It is not a weakly prime, because it can be changed into another prime (249495803) 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, 124747401 + 124747402.

It is an arithmetic number, because the mean of its divisors is an integer number (124747402).

Almost surely, 2^249494803 is an apocalyptic number.

249494803 is a deficient number, since it is larger than the sum of its proper divisors (1).

249494803 is an equidigital number, since it uses as much as digits as its factorization.

249494803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 249494803 is about 15795.4044899141. The cubic root of 249494803 is about 629.5358999034.

The spelling of 249494803 in words is "two hundred forty-nine million, four hundred ninety-four thousand, eight hundred three".