51706950 has 48 divisors (see below), whose sum is σ = 129540816. Its totient is φ = 13648000.

The previous prime is 51706943. The next prime is 51706973. The reversal of 51706950 is 5960715.

51706950 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 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 23 ways as a sum of consecutive naturals, for example, 13444 + ... + 16856.

It is an arithmetic number, because the mean of its divisors is an integer number (2698767).

Almost surely, 2^51706950 is an apocalyptic number.

51706950 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 51706950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64770408).

51706950 is an abundant number, since it is smaller than the sum of its proper divisors (77833866).

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

51706950 is a wasteful number, since it uses less digits than its factorization.

51706950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3529 (or 3524 counting only the distinct ones).

The product of its (nonzero) digits is 9450, while the sum is 33.

The square root of 51706950 is about 7190.7544805813. The cubic root of 51706950 is about 372.5486326006.

The spelling of 51706950 in words is "fifty-one million, seven hundred six thousand, nine hundred fifty".