51256336 has 20 divisors (see below), whose sum is σ = 99686700. Its totient is φ = 25530752.

The previous prime is 51256297. The next prime is 51256363. The reversal of 51256336 is 63365215.

It can be written as a sum of positive squares in 2 ways, for example, as 9265936 + 41990400 = 3044^2 + 6480^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51256298 and 51256307.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1651 + ... + 10258.

It is an arithmetic number, because the mean of its divisors is an integer number (4984335).

Almost surely, 2^51256336 is an apocalyptic number.

It is an amenable number.

51256336 is a deficient number, since it is larger than the sum of its proper divisors (48430364).

51256336 is a wasteful number, since it uses less digits than its factorization.

51256336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12186 (or 12180 counting only the distinct ones).

The product of its digits is 16200, while the sum is 31.

The square root of 51256336 is about 7159.3530433971. The cubic root of 51256336 is about 371.4632487207.

The spelling of 51256336 in words is "fifty-one million, two hundred fifty-six thousand, three hundred thirty-six".