47478125 has 12 divisors (see below), whose sum is σ = 59347764. Its totient is φ = 37980000.

The previous prime is 47478121. The next prime is 47478157. The reversal of 47478125 is 52187474.

It can be written as a sum of positive squares in 6 ways, for example, as 25020004 + 22458121 = 5002^2 + 4739^2 .

It is not a de Polignac number, because 47478125 - 2² = 47478121 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47478121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4472 + ... + 10721.

It is an arithmetic number, because the mean of its divisors is an integer number (4945647).

Almost surely, 2^47478125 is an apocalyptic number.

It is an amenable number.

47478125 is a deficient number, since it is larger than the sum of its proper divisors (11869639).

47478125 is an frugal number, since it uses more digits than its factorization.

47478125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15218 (or 15198 counting only the distinct ones).

The product of its digits is 62720, while the sum is 38.

The square root of 47478125 is about 6890.4372139945. The cubic root of 47478125 is about 362.1022192331.

The spelling of 47478125 in words is "forty-seven million, four hundred seventy-eight thousand, one hundred twenty-five".