51798712 has 64 divisors (see below), whose sum is σ = 118368000. Its totient is φ = 20756736.

The previous prime is 51798701. The next prime is 51798713. The reversal of 51798712 is 21789715.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51798713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94423 + ... + 94969.

It is an arithmetic number, because the mean of its divisors is an integer number (1849500).

Almost surely, 2^51798712 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 51798712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59184000).

51798712 is an abundant number, since it is smaller than the sum of its proper divisors (66569288).

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

51798712 is a wasteful number, since it uses less digits than its factorization.

51798712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668 (or 664 counting only the distinct ones).

The product of its digits is 35280, while the sum is 40.

The square root of 51798712 is about 7197.1322066501. The cubic root of 51798712 is about 372.7688841326.

The spelling of 51798712 in words is "fifty-one million, seven hundred ninety-eight thousand, seven hundred twelve".