51284611 has 8 divisors (see below), whose sum is σ = 58824800. Its totient is φ = 43797888.

The previous prime is 51284603. The next prime is 51284647. The reversal of 51284611 is 11648215.

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

It is a cyclic number.

It is not a de Polignac number, because 51284611 - 2³ = 51284603 is a prime.

It is a super-2 number, since 2×51284611² = 5260222650842642, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51284611.

It is not an unprimeable number, because it can be changed into a prime (51284671) 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, 11286 + ... + 15163.

It is an arithmetic number, because the mean of its divisors is an integer number (7353100).

Almost surely, 2^51284611 is an apocalyptic number.

51284611 is a deficient number, since it is larger than the sum of its proper divisors (7540189).

51284611 is a wasteful number, since it uses less digits than its factorization.

51284611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26733.

The product of its digits is 1920, while the sum is 28.

The square root of 51284611 is about 7161.3274607436. The cubic root of 51284611 is about 371.5315407177.

The spelling of 51284611 in words is "fifty-one million, two hundred eighty-four thousand, six hundred eleven".