25044673121 has 8 divisors (see below), whose sum is σ = 27168058344. Its totient is φ = 22949412480.

The previous prime is 25044673099. The next prime is 25044673123. The reversal of 25044673121 is 12137644052.

It can be written as a sum of positive squares in 4 ways, for example, as 4423713121 + 20620960000 = 66511^2 + 143600^2 .

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 25044673121 - 2²² = 25040478817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25044673123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7029290 + ... + 7032851.

It is an arithmetic number, because the mean of its divisors is an integer number (3396007293).

Almost surely, 2^25044673121 is an apocalyptic number.

It is an amenable number.

25044673121 is a deficient number, since it is larger than the sum of its proper divisors (2123385223).

25044673121 is a wasteful number, since it uses less digits than its factorization.

25044673121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14062291.

The product of its (nonzero) digits is 40320, while the sum is 35.

The spelling of 25044673121 in words is "twenty-five billion, forty-four million, six hundred seventy-three thousand, one hundred twenty-one".