25720683039 has 12 divisors (see below), whose sum is σ = 37240350472. Its totient is φ = 17106390000.

The previous prime is 25720683031. The next prime is 25720683047. The reversal of 25720683039 is 93038602752.

It is an interprime number because it is at equal distance from previous prime (25720683031) and next prime (25720683047).

It is not a de Polignac number, because 25720683039 - 2³ = 25720683031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25720682985 and 25720683003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25720683031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3390337 + ... + 3397914.

Almost surely, 2^25720683039 is an apocalyptic number.

25720683039 is a deficient number, since it is larger than the sum of its proper divisors (11519667433).

25720683039 is a wasteful number, since it uses less digits than its factorization.

25720683039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6788678 (or 6788675 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 25720683039 in words is "twenty-five billion, seven hundred twenty million, six hundred eighty-three thousand, thirty-nine".