51338936 has 16 divisors (see below), whose sum is σ = 105011640. Its totient is φ = 23335840.

The previous prime is 51338897. The next prime is 51338939. The reversal of 51338936 is 63983315.

It is a super-2 number, since 2×51338936² = 5271372699224192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51338936.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51338939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 291611 + ... + 291786.

Almost surely, 2^51338936 is an apocalyptic number.

It is an amenable number.

51338936 is an abundant number, since it is smaller than the sum of its proper divisors (53672704).

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

51338936 is a wasteful number, since it uses less digits than its factorization.

51338936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583414 (or 583410 counting only the distinct ones).

The product of its digits is 58320, while the sum is 38.

The square root of 51338936 is about 7165.1193988656. The cubic root of 51338936 is about 371.6626803070.

The spelling of 51338936 in words is "fifty-one million, three hundred thirty-eight thousand, nine hundred thirty-six".