4005431206025 has 6 divisors (see below), whose sum is σ = 4966734695502. Its totient is φ = 3204344964800.

The previous prime is 4005431205961. The next prime is 4005431206061. The reversal of 4005431206025 is 5206021345004.

It can be written as a sum of positive squares in 3 ways, for example, as 154782443776 + 3850648762249 = 393424^2 + 1962307^2 .

It is not a de Polignac number, because 4005431206025 - 2⁶ = 4005431205961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4005431205982 and 4005431206000.

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 5 ways as a sum of consecutive naturals, for example, 80108624096 + ... + 80108624145.

It is an arithmetic number, because the mean of its divisors is an integer number (827789115917).

Almost surely, 2^{4005431206025} is an apocalyptic number.

It is an amenable number.

4005431206025 is a deficient number, since it is larger than the sum of its proper divisors (961303489477).

4005431206025 is a wasteful number, since it uses less digits than its factorization.

4005431206025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160217248251 (or 160217248246 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 4005431206025 in words is "four trillion, five billion, four hundred thirty-one million, two hundred six thousand, twenty-five".