51706326 has 64 divisors (see below), whose sum is σ = 123273216. Its totient is φ = 14148000.

The previous prime is 51706321. The next prime is 51706327. The reversal of 51706326 is 62360715.

It is a junction number, because it is equal to n+sod(n) for n = 51706293 and 51706302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51706321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 196471 + ... + 196733.

It is an arithmetic number, because the mean of its divisors is an integer number (1926144).

Almost surely, 2^51706326 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51706326, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61636608).

51706326 is an abundant number, since it is smaller than the sum of its proper divisors (71566890).

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

51706326 is a wasteful number, since it uses less digits than its factorization.

51706326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 51706326 is about 7190.7110914012. The cubic root of 51706326 is about 372.5471339543.

The spelling of 51706326 in words is "fifty-one million, seven hundred six thousand, three hundred twenty-six".