51648256 has 36 divisors (see below), whose sum is σ = 112473144. Its totient is φ = 23475200.

The previous prime is 51648241. The next prime is 51648299. The reversal of 51648256 is 65284615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6355 + ... + 11986.

It is an arithmetic number, because the mean of its divisors is an integer number (3124254).

Almost surely, 2^51648256 is an apocalyptic number.

It is an amenable number.

51648256 is an abundant number, since it is smaller than the sum of its proper divisors (60824888).

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

51648256 is a wasteful number, since it uses less digits than its factorization.

51648256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18368 (or 18354 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

The square root of 51648256 is about 7186.6721088415. The cubic root of 51648256 is about 372.4076157845.

The spelling of 51648256 in words is "fifty-one million, six hundred forty-eight thousand, two hundred fifty-six".