6381625 has 16 divisors (see below), whose sum is σ = 8386560. Its totient is φ = 4834800.

The previous prime is 6381619. The next prime is 6381643. The reversal of 6381625 is 5261836.

It is not a de Polignac number, because 6381625 - 2⁷ = 6381497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1032 + ... + 3718.

It is an arithmetic number, because the mean of its divisors is an integer number (524160).

Almost surely, 2^6381625 is an apocalyptic number.

It is an amenable number.

6381625 is a deficient number, since it is larger than the sum of its proper divisors (2004935).

6381625 is a wasteful number, since it uses less digits than its factorization.

6381625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2721 (or 2711 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 6381625 is about 2526.1878394134. The cubic root of 6381625 is about 185.4856971993.

The spelling of 6381625 in words is "six million, three hundred eighty-one thousand, six hundred twenty-five".