51065700 has 72 divisors (see below), whose sum is σ = 168864192. Its totient is φ = 11671680.

The previous prime is 51065689. The next prime is 51065743. The reversal of 51065700 is 756015.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10059 + ... + 14258.

It is an arithmetic number, because the mean of its divisors is an integer number (2345336).

Almost surely, 2^51065700 is an apocalyptic number.

51065700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51065700 is an abundant number, since it is smaller than the sum of its proper divisors (117798492).

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

51065700 is a wasteful number, since it uses less digits than its factorization.

51065700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24341 (or 24334 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 51065700 is about 7146.0268681275. The cubic root of 51065700 is about 371.0021529313.

The spelling of 51065700 in words is "fifty-one million, sixty-five thousand, seven hundred".