51230825 has 12 divisors (see below), whose sum is σ = 64015248. Its totient is φ = 40669200.

The previous prime is 51230801. The next prime is 51230869. The reversal of 51230825 is 52803215.

51230825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51230825 - 2⁶ = 51230761 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51230794 and 51230803.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4547 + ... + 11096.

It is an arithmetic number, because the mean of its divisors is an integer number (5334604).

Almost surely, 2^51230825 is an apocalyptic number.

It is an amenable number.

51230825 is a deficient number, since it is larger than the sum of its proper divisors (12784423).

51230825 is a wasteful number, since it uses less digits than its factorization.

51230825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15784 (or 15779 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 51230825 is about 7157.5711662547. The cubic root of 51230825 is about 371.4016109975.

The spelling of 51230825 in words is "fifty-one million, two hundred thirty thousand, eight hundred twenty-five".