249049055 has 8 divisors (see below), whose sum is σ = 314588400. Its totient is φ = 188752896.

The previous prime is 249049051. The next prime is 249049057. The reversal of 249049055 is 550940942.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 249049055 - 2² = 249049051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249049051) 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 in 7 ways as a sum of consecutive naturals, for example, 1310690 + ... + 1310879.

It is an arithmetic number, because the mean of its divisors is an integer number (39323550).

Almost surely, 2^249049055 is an apocalyptic number.

249049055 is a deficient number, since it is larger than the sum of its proper divisors (65539345).

249049055 is a wasteful number, since it uses less digits than its factorization.

249049055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2621593.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 249049055 is about 15781.2881286668. The cubic root of 249049055 is about 629.1607663048.

Adding to 249049055 its reverse (550940942), we get a palindrome (799989997).

The spelling of 249049055 in words is "two hundred forty-nine million, forty-nine thousand, fifty-five".