51065224 has 16 divisors (see below), whose sum is σ = 109425600. Its totient is φ = 21885072.

The previous prime is 51065177. The next prime is 51065233. The reversal of 51065224 is 42256015.

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, 455884 + ... + 455995.

It is an arithmetic number, because the mean of its divisors is an integer number (6839100).

Almost surely, 2^51065224 is an apocalyptic number.

It is an amenable number.

51065224 is an abundant number, since it is smaller than the sum of its proper divisors (58360376).

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

51065224 is a wasteful number, since it uses less digits than its factorization.

51065224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911892 (or 911888 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 51065224 is about 7145.9935628295. The cubic root of 51065224 is about 371.0010001838.

The spelling of 51065224 in words is "fifty-one million, sixty-five thousand, two hundred twenty-four".