51459856 has 20 divisors (see below), whose sum is σ = 113947072. Its totient is φ = 22054176.

The previous prime is 51459773. The next prime is 51459869. The reversal of 51459856 is 65895415.

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, 229620 + ... + 229843.

Almost surely, 2^51459856 is an apocalyptic number.

51459856 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

51459856 is an abundant number, since it is smaller than the sum of its proper divisors (62487216).

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

51459856 is a wasteful number, since it uses less digits than its factorization.

51459856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459478 (or 459472 counting only the distinct ones).

The product of its digits is 216000, while the sum is 43.

The square root of 51459856 is about 7173.5525369234. The cubic root of 51459856 is about 371.9542472732.

The spelling of 51459856 in words is "fifty-one million, four hundred fifty-nine thousand, eight hundred fifty-six".