39804487025 has 6 divisors (see below), whose sum is σ = 49357563942. Its totient is φ = 31843589600.

The previous prime is 39804486983. The next prime is 39804487031. The reversal of 39804487025 is 52078440893.

It can be written as a sum of positive squares in 3 ways, for example, as 9316882576 + 30487604449 = 96524^2 + 174607^2 .

It is not a de Polignac number, because 39804487025 - 2⁸ = 39804486769 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 796089716 + ... + 796089765.

It is an arithmetic number, because the mean of its divisors is an integer number (8226260657).

Almost surely, 2^39804487025 is an apocalyptic number.

It is an amenable number.

39804487025 is a deficient number, since it is larger than the sum of its proper divisors (9553076917).

39804487025 is a wasteful number, since it uses less digits than its factorization.

39804487025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592179491 (or 1592179486 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 39804487025 in words is "thirty-nine billion, eight hundred four million, four hundred eighty-seven thousand, twenty-five".