249202663 has 4 divisors (see below), whose sum is σ = 249302680. Its totient is φ = 249102648.

The previous prime is 249202637. The next prime is 249202691. The reversal of 249202663 is 366202942.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-249202663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249202693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46173 + ... + 51286.

It is an arithmetic number, because the mean of its divisors is an integer number (62325670).

Almost surely, 2^249202663 is an apocalyptic number.

249202663 is a deficient number, since it is larger than the sum of its proper divisors (100017).

249202663 is an equidigital number, since it uses as much as digits as its factorization.

249202663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100016.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 249202663 is about 15786.1541548282. The cubic root of 249202663 is about 629.2900905785.

The spelling of 249202663 in words is "two hundred forty-nine million, two hundred two thousand, six hundred sixty-three".