51404111 has 8 divisors (see below), whose sum is σ = 56129664. Its totient is φ = 46687320.

The previous prime is 51404099. The next prime is 51404159. The reversal of 51404111 is 11140415.

51404111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-51404111 is a prime.

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 51404111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51403111) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 19286 + ... + 21788.

It is an arithmetic number, because the mean of its divisors is an integer number (7016208).

Almost surely, 2^51404111 is an apocalyptic number.

51404111 is a deficient number, since it is larger than the sum of its proper divisors (4725553).

51404111 is a wasteful number, since it uses less digits than its factorization.

51404111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4381.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 51404111 is about 7169.6660312737. Note that the first 3 decimals coincide. The cubic root of 51404111 is about 371.8198895900.

Adding to 51404111 its reverse (11140415), we get a palindrome (62544526).

It can be divided in two parts, 51404 and 111, that added together give a palindrome (51515).

The spelling of 51404111 in words is "fifty-one million, four hundred four thousand, one hundred eleven".