51885738 has 32 divisors (see below), whose sum is σ = 117030720. Its totient is φ = 17035920.

The previous prime is 51885737. The next prime is 51885749. The reversal of 51885738 is 83758815.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 51885693 and 51885702.

It is not an unprimeable number, because it can be changed into a prime (51885733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3553 + ... + 10788.

It is an arithmetic number, because the mean of its divisors is an integer number (3657210).

Almost surely, 2^51885738 is an apocalyptic number.

51885738 is an abundant number, since it is smaller than the sum of its proper divisors (65144982).

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

51885738 is a wasteful number, since it uses less digits than its factorization.

51885738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14419 (or 14413 counting only the distinct ones).

The product of its digits is 268800, while the sum is 45.

The square root of 51885738 is about 7203.1755497142. The cubic root of 51885738 is about 372.9775278936.

The spelling of 51885738 in words is "fifty-one million, eight hundred eighty-five thousand, seven hundred thirty-eight".