51424849 has 16 divisors (see below), whose sum is σ = 64558080. Its totient is φ = 39940560.

The previous prime is 51424843. The next prime is 51424871. The reversal of 51424849 is 94842415.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51424849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51424843) 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 15 ways as a sum of consecutive naturals, for example, 5347 + ... + 11464.

It is an arithmetic number, because the mean of its divisors is an integer number (4034880).

Almost surely, 2^51424849 is an apocalyptic number.

It is an amenable number.

51424849 is a deficient number, since it is larger than the sum of its proper divisors (13133231).

51424849 is a wasteful number, since it uses less digits than its factorization.

51424849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16860.

The product of its digits is 46080, while the sum is 37.

The square root of 51424849 is about 7171.1121173776. The cubic root of 51424849 is about 371.8698840621.

The spelling of 51424849 in words is "fifty-one million, four hundred twenty-four thousand, eight hundred forty-nine".