51738849 has 12 divisors (see below), whose sum is σ = 74838036. Its totient is φ = 34444512.

The previous prime is 51738833. The next prime is 51738851. The reversal of 51738849 is 94883715.

51738849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 34574400 + 17164449 = 5880^2 + 4143^2 .

It is not a de Polignac number, because 51738849 - 2⁴ = 51738833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51738889) 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 11 ways as a sum of consecutive naturals, for example, 3567 + ... + 10779.

It is an arithmetic number, because the mean of its divisors is an integer number (6236503).

Almost surely, 2^51738849 is an apocalyptic number.

It is an amenable number.

51738849 is a deficient number, since it is larger than the sum of its proper divisors (23099187).

51738849 is a wasteful number, since it uses less digits than its factorization.

51738849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8016 (or 8013 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 51738849 is about 7192.9721951360. The cubic root of 51738849 is about 372.6252276287.

The spelling of 51738849 in words is "fifty-one million, seven hundred thirty-eight thousand, eight hundred forty-nine".