51334428 has 48 divisors (see below), whose sum is σ = 128186240. Its totient is φ = 15940800.

The previous prime is 51334417. The next prime is 51334433. The reversal of 51334428 is 82443315.

51334428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 51334395 and 51334404.

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 15 ways as a sum of consecutive naturals, for example, 12063 + ... + 15753.

Almost surely, 2^51334428 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 51334428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64093120).

51334428 is an abundant number, since it is smaller than the sum of its proper divisors (76851812).

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

51334428 is a wasteful number, since it uses less digits than its factorization.

51334428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3778 (or 3776 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 51334428 is about 7164.8048124146. The cubic root of 51334428 is about 371.6518015956.

The spelling of 51334428 in words is "fifty-one million, three hundred thirty-four thousand, four hundred twenty-eight".