249251456954 has 16 divisors (see below), whose sum is σ = 386896131720. Its totient is φ = 120288893760.

The previous prime is 249251456947. The next prime is 249251456977. The reversal of 249251456954 is 459654152942.

249251456954 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 208824322729 + 40427134225 = 456973^2 + 201065^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 249251456954.

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, 524429 + ... + 879504.

Almost surely, 2^249251456954 is an apocalyptic number.

249251456954 is a deficient number, since it is larger than the sum of its proper divisors (137644674766).

249251456954 is a wasteful number, since it uses less digits than its factorization.

249251456954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407025.

The product of its digits is 15552000, while the sum is 56.

The spelling of 249251456954 in words is "two hundred forty-nine billion, two hundred fifty-one million, four hundred fifty-six thousand, nine hundred fifty-four".