25000278055249 has 32 divisors (see below), whose sum is σ = 30651152302080. Its totient is φ = 19912631723712.

The previous prime is 25000278055189. The next prime is 25000278055253. The reversal of 25000278055249 is 94255087200052.

It is not a de Polignac number, because 25000278055249 - 2⁷ = 25000278055121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25000278055349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26082832 + ... + 27024334.

It is an arithmetic number, because the mean of its divisors is an integer number (957848509440).

Almost surely, 2^{25000278055249} is an apocalyptic number.

It is an amenable number.

25000278055249 is a deficient number, since it is larger than the sum of its proper divisors (5650874246831).

25000278055249 is a wasteful number, since it uses less digits than its factorization.

25000278055249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945349.

The product of its (nonzero) digits is 2016000, while the sum is 49.

The spelling of 25000278055249 in words is "twenty-five trillion, two hundred seventy-eight million, fifty-five thousand, two hundred forty-nine".