51936656 has 20 divisors (see below), whose sum is σ = 103874304. Its totient is φ = 25130400.

The previous prime is 51936629. The next prime is 51936659. The reversal of 51936656 is 65663915.

51936656 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51936659) 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, 51860 + ... + 52851.

Almost surely, 2^51936656 is an apocalyptic number.

It is an amenable number.

51936656 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51936656 is a wasteful number, since it uses less digits than its factorization.

51936656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104750 (or 104744 counting only the distinct ones).

The product of its digits is 145800, while the sum is 41.

The square root of 51936656 is about 7206.7090963907. The cubic root of 51936656 is about 373.0994950052.

The spelling of 51936656 in words is "fifty-one million, nine hundred thirty-six thousand, six hundred fifty-six".