51997936 has 10 divisors (see below), whose sum is σ = 100746032. Its totient is φ = 25998960.

The previous prime is 51997921. The next prime is 51997937. The reversal of 51997936 is 63979915.

51997936 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 51997936.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51997937) 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 as a sum of consecutive naturals, namely, 1624920 + ... + 1624951.

Almost surely, 2^51997936 is an apocalyptic number.

It is an amenable number.

51997936 is a deficient number, since it is larger than the sum of its proper divisors (48748096).

51997936 is a wasteful number, since it uses less digits than its factorization.

51997936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3249879 (or 3249873 counting only the distinct ones).

The product of its digits is 459270, while the sum is 49.

The square root of 51997936 is about 7210.9594368572. The cubic root of 51997936 is about 373.2461772170.

The spelling of 51997936 in words is "fifty-one million, nine hundred ninety-seven thousand, nine hundred thirty-six".