51506106 has 8 divisors (see below), whose sum is σ = 103012224. Its totient is φ = 17168700.

The previous prime is 51506101. The next prime is 51506111. The reversal of 51506106 is 60160515.

It is an interprime number because it is at equal distance from previous prime (51506101) and next prime (51506111).

It is a sphenic number, since it is the product of 3 distinct primes.

51506106 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (51506101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4292170 + ... + 4292181.

It is an arithmetic number, because the mean of its divisors is an integer number (12876528).

Almost surely, 2^51506106 is an apocalyptic number.

51506106 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51506106 is a wasteful number, since it uses less digits than its factorization.

51506106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8584356.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 51506106 is about 7176.7754597730. The cubic root of 51506106 is about 372.0656462943.

The spelling of 51506106 in words is "fifty-one million, five hundred six thousand, one hundred six".