51635144 has 32 divisors (see below), whose sum is σ = 107619840. Its totient is φ = 23025600.

The previous prime is 51635117. The next prime is 51635147. The reversal of 51635144 is 44153615.

It is a happy number.

51635144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51635147) 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, 872 + ... + 10199.

It is an arithmetic number, because the mean of its divisors is an integer number (3363120).

Almost surely, 2^51635144 is an apocalyptic number.

It is an amenable number.

51635144 is an abundant number, since it is smaller than the sum of its proper divisors (55984696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51635144 is a wasteful number, since it uses less digits than its factorization.

51635144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11141 (or 11137 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 51635144 is about 7185.7598067289. The cubic root of 51635144 is about 372.3760986059.

Adding to 51635144 its reverse (44153615), we get a palindrome (95788759).

The spelling of 51635144 in words is "fifty-one million, six hundred thirty-five thousand, one hundred forty-four".