51016225 has 24 divisors (see below), whose sum is σ = 69023360. Its totient is φ = 37177920.

The previous prime is 51016219. The next prime is 51016241. The reversal of 51016225 is 52261015.

It is not a de Polignac number, because 51016225 - 2⁵ = 51016193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51016196 and 51016205.

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, 24682 + ... + 26668.

Almost surely, 2^51016225 is an apocalyptic number.

It is an amenable number.

51016225 is a deficient number, since it is larger than the sum of its proper divisors (18007135).

51016225 is a wasteful number, since it uses less digits than its factorization.

51016225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2089 (or 2084 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 51016225 is about 7142.5643154262. The cubic root of 51016225 is about 370.8822990792.

The spelling of 51016225 in words is "fifty-one million, sixteen thousand, two hundred twenty-five".