51061128 has 32 divisors (see below), whose sum is σ = 127828800. Its totient is φ = 16996928.

The previous prime is 51061111. The next prime is 51061139. The reversal of 51061128 is 82116015.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 51061098 and 51061107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30850 + ... + 32462.

It is an arithmetic number, because the mean of its divisors is an integer number (3994650).

Almost surely, 2^51061128 is an apocalyptic number.

It is an amenable number.

51061128 is an abundant number, since it is smaller than the sum of its proper divisors (76767672).

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

51061128 is a wasteful number, since it uses less digits than its factorization.

51061128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2941 (or 2937 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 51061128 is about 7145.7069629254. The cubic root of 51061128 is about 370.9910804471.

The spelling of 51061128 in words is "fifty-one million, sixty-one thousand, one hundred twenty-eight".