51992928 has 120 divisors (see below), whose sum is σ = 164778768. Its totient is φ = 15987456.

The previous prime is 51992869. The next prime is 51992933. The reversal of 51992928 is 82929915.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 32925 + ... + 34467.

Almost surely, 2^51992928 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 51992928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82389384).

51992928 is an abundant number, since it is smaller than the sum of its proper divisors (112785840).

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

51992928 is a wasteful number, since it uses less digits than its factorization.

51992928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578 (or 1561 counting only the distinct ones).

The product of its digits is 116640, while the sum is 45.

The square root of 51992928 is about 7210.6121792813. The cubic root of 51992928 is about 373.2341941974.

The spelling of 51992928 in words is "fifty-one million, nine hundred ninety-two thousand, nine hundred twenty-eight".