51128411 has 8 divisors (see below), whose sum is σ = 54835920. Its totient is φ = 47522592.

The previous prime is 51128381. The next prime is 51128447. The reversal of 51128411 is 11482115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51128411 is a prime.

It is a super-2 number, since 2×51128411² = 5228228822769842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51128461) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 24380 + ... + 26393.

It is an arithmetic number, because the mean of its divisors is an integer number (6854490).

Almost surely, 2^51128411 is an apocalyptic number.

51128411 is a deficient number, since it is larger than the sum of its proper divisors (3707509).

51128411 is a wasteful number, since it uses less digits than its factorization.

51128411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50845.

The product of its digits is 320, while the sum is 23.

The square root of 51128411 is about 7150.4133446955. The cubic root of 51128411 is about 371.1539599736.

The spelling of 51128411 in words is "fifty-one million, one hundred twenty-eight thousand, four hundred eleven".