47520845 has 8 divisors (see below), whose sum is σ = 58416120. Its totient is φ = 37089280.

The previous prime is 47520827. The next prime is 47520853. The reversal of 47520845 is 54802574.

47520845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2550409 + 44970436 = 1597^2 + 6706^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-47520845 is a prime.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 115700 + ... + 116109.

It is an arithmetic number, because the mean of its divisors is an integer number (7302015).

Almost surely, 2^47520845 is an apocalyptic number.

It is an amenable number.

47520845 is a deficient number, since it is larger than the sum of its proper divisors (10895275).

47520845 is a wasteful number, since it uses less digits than its factorization.

47520845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231855.

The product of its (nonzero) digits is 44800, while the sum is 35.

The square root of 47520845 is about 6893.5364654145. The cubic root of 47520845 is about 362.2107911249.

The spelling of 47520845 in words is "forty-seven million, five hundred twenty thousand, eight hundred forty-five".