25830780825 has 48 divisors (see below), whose sum is σ = 43097686016. Its totient is φ = 13650638400.

The previous prime is 25830780809. The next prime is 25830780827. The reversal of 25830780825 is 52808703852.

It is not a de Polignac number, because 25830780825 - 2⁴ = 25830780809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25830780827) 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 47 ways as a sum of consecutive naturals, for example, 11724174 + ... + 11726376.

Almost surely, 2^25830780825 is an apocalyptic number.

25830780825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25830780825 is a deficient number, since it is larger than the sum of its proper divisors (17266905191).

25830780825 is a wasteful number, since it uses less digits than its factorization.

25830780825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3574 (or 3569 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 48.

The spelling of 25830780825 in words is "twenty-five billion, eight hundred thirty million, seven hundred eighty thousand, eight hundred twenty-five".