3851505825 has 48 divisors (see below), whose sum is σ = 6692904960. Its totient is φ = 1950569280.

The previous prime is 3851505817. The next prime is 3851505857. The reversal of 3851505825 is 5285051583.

It is not a de Polignac number, because 3851505825 - 2³ = 3851505817 is a prime.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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 47 ways as a sum of consecutive naturals, for example, 231744 + ... + 247806.

It is an arithmetic number, because the mean of its divisors is an integer number (139435520).

Almost surely, 2^3851505825 is an apocalyptic number.

It is an amenable number.

3851505825 is a deficient number, since it is larger than the sum of its proper divisors (2841399135).

3851505825 is a wasteful number, since it uses less digits than its factorization.

3851505825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16238 (or 16233 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 42.

The square root of 3851505825 is about 62060.5013273338. The cubic root of 3851505825 is about 1567.5095171745.

The spelling of 3851505825 in words is "three billion, eight hundred fifty-one million, five hundred five thousand, eight hundred twenty-five".