51083712 has 84 divisors (see below), whose sum is σ = 147757896. Its totient is φ = 16872960.

The previous prime is 51083707. The next prime is 51083731. The reversal of 51083712 is 21738015.

51083712 is a `hidden beast` number, since 510 + 83 + 71 + 2 = 666.

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75118 + ... + 75794.

Almost surely, 2^51083712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51083712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73878948).

51083712 is an abundant number, since it is smaller than the sum of its proper divisors (96674184).

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

51083712 is a wasteful number, since it uses less digits than its factorization.

51083712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826 (or 813 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 51083712 is about 7147.2870377508. The cubic root of 51083712 is about 371.0457680209.

The spelling of 51083712 in words is "fifty-one million, eighty-three thousand, seven hundred twelve".