47890625 has 16 divisors (see below), whose sum is σ = 59960784. Its totient is φ = 38250000.

The previous prime is 47890613. The next prime is 47890631. The reversal of 47890625 is 52609874.

It can be written as a sum of positive squares in 8 ways, for example, as 20349121 + 27541504 = 4511^2 + 5248^2 .

It is not a de Polignac number, because 47890625 - 2⁸ = 47890369 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77819 + ... + 78431.

It is an arithmetic number, because the mean of its divisors is an integer number (3747549).

Almost surely, 2^47890625 is an apocalyptic number.

It is an amenable number.

47890625 is a deficient number, since it is larger than the sum of its proper divisors (12070159).

47890625 is an frugal number, since it uses more digits than its factorization.

47890625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648 (or 618 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 47890625 is about 6920.3052678332. The cubic root of 47890625 is about 363.1478703516.

The spelling of 47890625 in words is "forty-seven million, eight hundred ninety thousand, six hundred twenty-five".