249488854 has 16 divisors (see below), whose sum is σ = 393726816. Its totient is φ = 118411200.

The previous prime is 249488809. The next prime is 249488879. The reversal of 249488854 is 458884942.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 38082 + ... + 44149.

It is an arithmetic number, because the mean of its divisors is an integer number (24607926).

Almost surely, 2^249488854 is an apocalyptic number.

249488854 is a deficient number, since it is larger than the sum of its proper divisors (144237962).

249488854 is a wasteful number, since it uses less digits than its factorization.

249488854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82311.

The product of its digits is 2949120, while the sum is 52.

The square root of 249488854 is about 15795.2161745258. The cubic root of 249488854 is about 629.5308962736.

It can be divided in two parts, 2494888 and 54, that added together give a palindrome (2494942).

The spelling of 249488854 in words is "two hundred forty-nine million, four hundred eighty-eight thousand, eight hundred fifty-four".