51091184 has 20 divisors (see below), whose sum is σ = 99238440. Its totient is φ = 25481280.

The previous prime is 51091141. The next prime is 51091199. The reversal of 51091184 is 48119015.

51091184 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51091184² = 5220618165043712, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 2894 + ... + 10514.

It is an arithmetic number, because the mean of its divisors is an integer number (4961922).

Almost surely, 2^51091184 is an apocalyptic number.

It is an amenable number.

51091184 is a deficient number, since it is larger than the sum of its proper divisors (48147256).

51091184 is a wasteful number, since it uses less digits than its factorization.

51091184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8048 (or 8042 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 51091184 is about 7147.8097344571. The cubic root of 51091184 is about 371.0638580585.

The spelling of 51091184 in words is "fifty-one million, ninety-one thousand, one hundred eighty-four".