47252785 has 4 divisors (see below), whose sum is σ = 56703348. Its totient is φ = 37802224.

The previous prime is 47252783. The next prime is 47252789. The reversal of 47252785 is 58725274.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27468081 + 19784704 = 5241^2 + 4448^2 .

It is a cyclic number.

It is not a de Polignac number, because 47252785 - 2¹ = 47252783 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47252783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4725274 + ... + 4725283.

It is an arithmetic number, because the mean of its divisors is an integer number (14175837).

Almost surely, 2^47252785 is an apocalyptic number.

It is an amenable number.

47252785 is a deficient number, since it is larger than the sum of its proper divisors (9450563).

47252785 is an equidigital number, since it uses as much as digits as its factorization.

47252785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9450562.

The product of its digits is 156800, while the sum is 40.

The square root of 47252785 is about 6874.0661183902. The cubic root of 47252785 is about 361.5284423928.

The spelling of 47252785 in words is "forty-seven million, two hundred fifty-two thousand, seven hundred eighty-five".