51675646 has 16 divisors (see below), whose sum is σ = 85753728. Its totient is φ = 23157400.

The previous prime is 51675599. The next prime is 51675647. The reversal of 51675646 is 64657615.

51675646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 51675599 and 51675608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51675647) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 14980 + ... + 18103.

It is an arithmetic number, because the mean of its divisors is an integer number (5359608).

Almost surely, 2^51675646 is an apocalyptic number.

51675646 is a deficient number, since it is larger than the sum of its proper divisors (34078082).

51675646 is a wasteful number, since it uses less digits than its factorization.

51675646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33167.

The product of its digits is 151200, while the sum is 40.

The square root of 51675646 is about 7188.5774670654. The cubic root of 51675646 is about 372.4734356385.

The spelling of 51675646 in words is "fifty-one million, six hundred seventy-five thousand, six hundred forty-six".