51256896 has 56 divisors (see below), whose sum is σ = 136306560. Its totient is φ = 16998912.

The previous prime is 51256879. The next prime is 51256967. The reversal of 51256896 is 69865215.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45330 + ... + 46446.

Almost surely, 2^51256896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51256896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68153280).

51256896 is an abundant number, since it is smaller than the sum of its proper divisors (85049664).

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

51256896 is a wasteful number, since it uses less digits than its factorization.

51256896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371 (or 1361 counting only the distinct ones).

The product of its digits is 129600, while the sum is 42.

The square root of 51256896 is about 7159.3921529694. The cubic root of 51256896 is about 371.4646015203.

It can be divided in two parts, 5125 and 6896, that added together give a palindrome (12021).

The spelling of 51256896 in words is "fifty-one million, two hundred fifty-six thousand, eight hundred ninety-six".