51508006 has 12 divisors (see below), whose sum is σ = 84924756. Its totient is φ = 23412620.

The previous prime is 51508001. The next prime is 51508007. The reversal of 51508006 is 60080515.

51508006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51508001) 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 5 ways as a sum of consecutive naturals, for example, 106180 + ... + 106663.

It is an arithmetic number, because the mean of its divisors is an integer number (7077063).

Almost surely, 2^51508006 is an apocalyptic number.

51508006 is a deficient number, since it is larger than the sum of its proper divisors (33416750).

51508006 is a wasteful number, since it uses less digits than its factorization.

51508006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212867 (or 212856 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 51508006 is about 7176.9078299780. The cubic root of 51508006 is about 372.0702212602.

The spelling of 51508006 in words is "fifty-one million, five hundred eight thousand, six".