47831225 has 18 divisors (see below), whose sum is σ = 64229706. Its totient is φ = 35318400.

The previous prime is 47831219. The next prime is 47831249. The reversal of 47831225 is 52213874.

It can be written as a sum of positive squares in 9 ways, for example, as 40819321 + 7011904 = 6389^2 + 2648^2 .

It is not a de Polignac number, because 47831225 - 2¹⁶ = 47765689 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47831191 and 47831200.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1436 + ... + 9885.

It is an arithmetic number, because the mean of its divisors is an integer number (3568317).

Almost surely, 2^47831225 is an apocalyptic number.

It is an amenable number.

47831225 is a deficient number, since it is larger than the sum of its proper divisors (16398481).

47831225 is a wasteful number, since it uses less digits than its factorization.

47831225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11357 (or 11339 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 47831225 is about 6916.0122180343. The cubic root of 47831225 is about 362.9976676205.

The spelling of 47831225 in words is "forty-seven million, eight hundred thirty-one thousand, two hundred twenty-five".