3805507825 has 24 divisors (see below), whose sum is σ = 5503020800. Its totient is φ = 2609485200.

The previous prime is 3805507793. The next prime is 3805507841. The reversal of 3805507825 is 5287055083.

It is not a de Polignac number, because 3805507825 - 2⁵ = 3805507793 is a prime.

It is a super-2 number, since 2×3805507825² = 28963779612272461250, which contains 22 as substring.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 213321 + ... + 230470.

Almost surely, 2^3805507825 is an apocalyptic number.

3805507825 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3805507825 is a deficient number, since it is larger than the sum of its proper divisors (1697512975).

3805507825 is an equidigital number, since it uses as much as digits as its factorization.

3805507825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443822 (or 443803 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 43.

The square root of 3805507825 is about 61688.7982132899. The cubic root of 3805507825 is about 1561.2443262117.

The spelling of 3805507825 in words is "three billion, eight hundred five million, five hundred seven thousand, eight hundred twenty-five".