51825225 has 24 divisors (see below), whose sum is σ = 86056992. Its totient is φ = 27520000.

The previous prime is 51825209. The next prime is 51825247. The reversal of 51825225 is 52252815.

It is not a de Polignac number, because 51825225 - 2⁴ = 51825209 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51825192 and 51825201.

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, 17449 + ... + 20201.

It is an arithmetic number, because the mean of its divisors is an integer number (3585708).

Almost surely, 2^51825225 is an apocalyptic number.

It is an amenable number.

51825225 is a deficient number, since it is larger than the sum of its proper divisors (34231767).

51825225 is a wasteful number, since it uses less digits than its factorization.

51825225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3017 (or 3012 counting only the distinct ones).

The product of its digits is 8000, while the sum is 30.

The square root of 51825225 is about 7198.9738852145. The cubic root of 51825225 is about 372.8324734594.

The spelling of 51825225 in words is "fifty-one million, eight hundred twenty-five thousand, two hundred twenty-five".