51250225 has 24 divisors (see below), whose sum is σ = 69148352. Its totient is φ = 37454400.

The previous prime is 51250183. The next prime is 51250247. The reversal of 51250225 is 52205215.

It is not a de Polignac number, because 51250225 - 2⁷ = 51250097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51250196 and 51250205.

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, 32710 + ... + 34240.

Almost surely, 2^51250225 is an apocalyptic number.

It is an amenable number.

51250225 is a deficient number, since it is larger than the sum of its proper divisors (17898127).

51250225 is a wasteful number, since it uses less digits than its factorization.

51250225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1657 (or 1652 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 51250225 is about 7158.9262463026. The cubic root of 51250225 is about 371.4484856539.

The spelling of 51250225 in words is "fifty-one million, two hundred fifty thousand, two hundred twenty-five".